Home / 487,154,872.30-730,732,308.45-472,805,965.30

Finding the Fourth Proportional to 487,154,872.30, 730,732,308.45 and 472,805,965.30

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Solution

The fourth proportional to 487,154,872.30, 730,732,308.45 and 472,805,965.30 is: 709,208,947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,154,872.30 : 730,732,308.45 = 472,805,965.30 : x
  2. Step 2: Convert to fraction form
    487,154,872.30/730,732,308.45 = 472,805,965.30/x
  3. Step 3: Cross multiply
    487,154,872.30x = 730,732,308.45 × 472,805,965.30
  4. Step 4: Simplify right side
    487,154,872.30x = 345,494,594,472,599,616
  5. Step 5: Solve for x
    x = 345,494,594,472,599,616/487,154,872.30
  6. Step 6: Final answer
    x = 709,208,947.95

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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.