Home / 157,915,735.48-217,906,937.91-87,340,130.82

Finding the Fourth Proportional to 157,915,735.48, 217,906,937.91 and 87,340,130.82

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Solution

The fourth proportional to 157,915,735.48, 217,906,937.91 and 87,340,130.82 is: 120,520,101.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,915,735.48 : 217,906,937.91 = 87,340,130.82 : x
  2. Step 2: Convert to fraction form
    157,915,735.48/217,906,937.91 = 87,340,130.82/x
  3. Step 3: Cross multiply
    157,915,735.48x = 217,906,937.91 × 87,340,130.82
  4. Step 4: Simplify right side
    157,915,735.48x = 19,032,020,463,645,016
  5. Step 5: Solve for x
    x = 19,032,020,463,645,016/157,915,735.48
  6. Step 6: Final answer
    x = 120,520,101.47

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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.