Home / 124,262,221.69-171,443,866.71-72,040,836.43

Finding the Fourth Proportional to 124,262,221.69, 171,443,866.71 and 72,040,836.43

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Solution

The fourth proportional to 124,262,221.69, 171,443,866.71 and 72,040,836.43 is: 99,394,324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,262,221.69 : 171,443,866.71 = 72,040,836.43 : x
  2. Step 2: Convert to fraction form
    124,262,221.69/171,443,866.71 = 72,040,836.43/x
  3. Step 3: Cross multiply
    124,262,221.69x = 171,443,866.71 × 72,040,836.43
  4. Step 4: Simplify right side
    124,262,221.69x = 12,350,959,558,581,834
  5. Step 5: Solve for x
    x = 12,350,959,558,581,834/124,262,221.69
  6. Step 6: Final answer
    x = 99,394,324.28

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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.