Home / 749,021,901.62-1,123,976,709.75-417,306,560.36

Finding the Fourth Proportional to 749,021,901.62, 1,123,976,709.75 and 417,306,560.36

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Solution

The fourth proportional to 749,021,901.62, 1,123,976,709.75 and 417,306,560.36 is: 626,207,129.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,021,901.62 : 1,123,976,709.75 = 417,306,560.36 : x
  2. Step 2: Convert to fraction form
    749,021,901.62/1,123,976,709.75 = 417,306,560.36/x
  3. Step 3: Cross multiply
    749,021,901.62x = 1,123,976,709.75 × 417,306,560.36
  4. Step 4: Simplify right side
    749,021,901.62x = 469,042,854,670,522,560
  5. Step 5: Solve for x
    x = 469,042,854,670,522,560/749,021,901.62
  6. Step 6: Final answer
    x = 626,207,129.13

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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.