Home / 157,227,477.86-216,974,780.25-91,187,120

Finding the Fourth Proportional to 157,227,477.86, 216,974,780.25 and 91,187,120

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Solution

The fourth proportional to 157,227,477.86, 216,974,780.25 and 91,187,120 is: 125,838,724.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,227,477.86 : 216,974,780.25 = 91,187,120 : x
  2. Step 2: Convert to fraction form
    157,227,477.86/216,974,780.25 = 91,187,120/x
  3. Step 3: Cross multiply
    157,227,477.86x = 216,974,780.25 × 91,187,120
  4. Step 4: Simplify right side
    157,227,477.86x = 19,785,305,323,630,380
  5. Step 5: Solve for x
    x = 19,785,305,323,630,380/157,227,477.86
  6. Step 6: Final answer
    x = 125,838,724.84

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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.