Home / 157,736,720.93-217,665,270.85-87,171,486.72

Finding the Fourth Proportional to 157,736,720.93, 217,665,270.85 and 87,171,486.72

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Solution

The fourth proportional to 157,736,720.93, 217,665,270.85 and 87,171,486.72 is: 120,290,349.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,736,720.93 : 217,665,270.85 = 87,171,486.72 : x
  2. Step 2: Convert to fraction form
    157,736,720.93/217,665,270.85 = 87,171,486.72/x
  3. Step 3: Cross multiply
    157,736,720.93x = 217,665,270.85 × 87,171,486.72
  4. Step 4: Simplify right side
    157,736,720.93x = 18,974,205,267,305,976
  5. Step 5: Solve for x
    x = 18,974,205,267,305,976/157,736,720.93
  6. Step 6: Final answer
    x = 120,290,349.36

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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.