Home / 814,412,256.71-1,221,436,587.65-377,656,189.70

Finding the Fourth Proportional to 814,412,256.71, 1,221,436,587.65 and 377,656,189.70

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Solution

The fourth proportional to 814,412,256.71, 1,221,436,587.65 and 377,656,189.70 is: 566,399,982.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,412,256.71 : 1,221,436,587.65 = 377,656,189.70 : x
  2. Step 2: Convert to fraction form
    814,412,256.71/1,221,436,587.65 = 377,656,189.70/x
  3. Step 3: Cross multiply
    814,412,256.71x = 1,221,436,587.65 × 377,656,189.70
  4. Step 4: Simplify right side
    814,412,256.71x = 461,283,087,644,073,600
  5. Step 5: Solve for x
    x = 461,283,087,644,073,600/814,412,256.71
  6. Step 6: Final answer
    x = 566,399,982.13

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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.