Home / 124,394,272-171,726,242.88-77,366,504.68

Finding the Fourth Proportional to 124,394,272, 171,726,242.88 and 77,366,504.68

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Solution

The fourth proportional to 124,394,272, 171,726,242.88 and 77,366,504.68 is: 106,804,428.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,394,272 : 171,726,242.88 = 77,366,504.68 : x
  2. Step 2: Convert to fraction form
    124,394,272/171,726,242.88 = 77,366,504.68/x
  3. Step 3: Cross multiply
    124,394,272x = 171,726,242.88 × 77,366,504.68
  4. Step 4: Simplify right side
    124,394,272x = 13,285,859,173,454,338
  5. Step 5: Solve for x
    x = 13,285,859,173,454,338/124,394,272
  6. Step 6: Final answer
    x = 106,804,428.85

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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.