Home / 729,963,948.98-1,007,345,937.12-395,442,849.26

Finding the Fourth Proportional to 729,963,948.98, 1,007,345,937.12 and 395,442,849.26

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Solution

The fourth proportional to 729,963,948.98, 1,007,345,937.12 and 395,442,849.26 is: 545,708,795.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,963,948.98 : 1,007,345,937.12 = 395,442,849.26 : x
  2. Step 2: Convert to fraction form
    729,963,948.98/1,007,345,937.12 = 395,442,849.26/x
  3. Step 3: Cross multiply
    729,963,948.98x = 1,007,345,937.12 × 395,442,849.26
  4. Step 4: Simplify right side
    729,963,948.98x = 398,347,747,565,217,600
  5. Step 5: Solve for x
    x = 398,347,747,565,217,600/729,963,948.98
  6. Step 6: Final answer
    x = 545,708,795.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.