Home / 1,259,819,180.40-1,889,728,770.60-999,625,666.80

Finding the Fourth Proportional to 1,259,819,180.40, 1,889,728,770.60 and 999,625,666.80

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Solution

The fourth proportional to 1,259,819,180.40, 1,889,728,770.60 and 999,625,666.80 is: 1,499,438,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,819,180.40 : 1,889,728,770.60 = 999,625,666.80 : x
  2. Step 2: Convert to fraction form
    1,259,819,180.40/1,889,728,770.60 = 999,625,666.80/x
  3. Step 3: Cross multiply
    1,259,819,180.40x = 1,889,728,770.60 × 999,625,666.80
  4. Step 4: Simplify right side
    1,259,819,180.40x = 1,889,021,382,382,169,088
  5. Step 5: Solve for x
    x = 1,889,021,382,382,169,088/1,259,819,180.40
  6. Step 6: Final answer
    x = 1,499,438,500.20

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Half scale
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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.