Home / 723,287,488-998,129,696.16-393,262,625.92

Finding the Fourth Proportional to 723,287,488, 998,129,696.16 and 393,262,625.92

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Solution

The fourth proportional to 723,287,488, 998,129,696.16 and 393,262,625.92 is: 542,698,597.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,287,488 : 998,129,696.16 = 393,262,625.92 : x
  2. Step 2: Convert to fraction form
    723,287,488/998,129,696.16 = 393,262,625.92/x
  3. Step 3: Cross multiply
    723,287,488x = 998,129,696.16 × 393,262,625.92
  4. Step 4: Simplify right side
    723,287,488x = 392,527,105,320,613,312
  5. Step 5: Solve for x
    x = 392,527,105,320,613,312/723,287,488
  6. Step 6: Final answer
    x = 542,698,597.49

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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.