Home / 749,021,901.12-1,123,976,709-417,306,559.86

Finding the Fourth Proportional to 749,021,901.12, 1,123,976,709 and 417,306,559.86

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Solution

The fourth proportional to 749,021,901.12, 1,123,976,709 and 417,306,559.86 is: 626,207,128.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,021,901.12 : 1,123,976,709 = 417,306,559.86 : x
  2. Step 2: Convert to fraction form
    749,021,901.12/1,123,976,709 = 417,306,559.86/x
  3. Step 3: Cross multiply
    749,021,901.12x = 1,123,976,709 × 417,306,559.86
  4. Step 4: Simplify right side
    749,021,901.12x = 469,042,853,795,554,304
  5. Step 5: Solve for x
    x = 469,042,853,795,554,304/749,021,901.12
  6. Step 6: Final answer
    x = 626,207,128.38

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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.