Home / 124,262,220.69-171,443,865.33-72,040,835.43

Finding the Fourth Proportional to 124,262,220.69, 171,443,865.33 and 72,040,835.43

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Solution

The fourth proportional to 124,262,220.69, 171,443,865.33 and 72,040,835.43 is: 99,394,322.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,262,220.69 : 171,443,865.33 = 72,040,835.43 : x
  2. Step 2: Convert to fraction form
    124,262,220.69/171,443,865.33 = 72,040,835.43/x
  3. Step 3: Cross multiply
    124,262,220.69x = 171,443,865.33 × 72,040,835.43
  4. Step 4: Simplify right side
    124,262,220.69x = 12,350,959,287,721,614
  5. Step 5: Solve for x
    x = 12,350,959,287,721,614/124,262,220.69
  6. Step 6: Final answer
    x = 99,394,322.90

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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.