Home / 1,320,367,079.40-1,980,550,619.10-708,147,047.40

Finding the Fourth Proportional to 1,320,367,079.40, 1,980,550,619.10 and 708,147,047.40

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Solution

The fourth proportional to 1,320,367,079.40, 1,980,550,619.10 and 708,147,047.40 is: 1,062,220,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,367,079.40 : 1,980,550,619.10 = 708,147,047.40 : x
  2. Step 2: Convert to fraction form
    1,320,367,079.40/1,980,550,619.10 = 708,147,047.40/x
  3. Step 3: Cross multiply
    1,320,367,079.40x = 1,980,550,619.10 × 708,147,047.40
  4. Step 4: Simplify right side
    1,320,367,079.40x = 1,402,521,073,141,906,944
  5. Step 5: Solve for x
    x = 1,402,521,073,141,906,944/1,320,367,079.40
  6. Step 6: Final answer
    x = 1,062,220,571.10

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Double scale
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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.