Home / 718,522,831.48-991,555,732.12-417,136,108.54

Finding the Fourth Proportional to 718,522,831.48, 991,555,732.12 and 417,136,108.54

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Solution

The fourth proportional to 718,522,831.48, 991,555,732.12 and 417,136,108.54 is: 575,644,476.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,522,831.48 : 991,555,732.12 = 417,136,108.54 : x
  2. Step 2: Convert to fraction form
    718,522,831.48/991,555,732.12 = 417,136,108.54/x
  3. Step 3: Cross multiply
    718,522,831.48x = 991,555,732.12 × 417,136,108.54
  4. Step 4: Simplify right side
    718,522,831.48x = 413,613,699,497,067,520
  5. Step 5: Solve for x
    x = 413,613,699,497,067,520/718,522,831.48
  6. Step 6: Final answer
    x = 575,644,476.94

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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.