Home / 1,320,367,096.90-1,980,550,645.35-708,147,064.90

Finding the Fourth Proportional to 1,320,367,096.90, 1,980,550,645.35 and 708,147,064.90

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Solution

The fourth proportional to 1,320,367,096.90, 1,980,550,645.35 and 708,147,064.90 is: 1,062,220,597.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,367,096.90 : 1,980,550,645.35 = 708,147,064.90 : x
  2. Step 2: Convert to fraction form
    1,320,367,096.90/1,980,550,645.35 = 708,147,064.90/x
  3. Step 3: Cross multiply
    1,320,367,096.90x = 1,980,550,645.35 × 708,147,064.90
  4. Step 4: Simplify right side
    1,320,367,096.90x = 1,402,521,126,390,403,328
  5. Step 5: Solve for x
    x = 1,402,521,126,390,403,328/1,320,367,096.90
  6. Step 6: Final answer
    x = 1,062,220,597.35

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Half scale
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Double scale
Find fourth proportional to 1,320,367,097.90, 1,980,550,646.85 and 708,147,065.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.