Home / 157,915,777.59-217,906,995.87-87,340,172.82

Finding the Fourth Proportional to 157,915,777.59, 217,906,995.87 and 87,340,172.82

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Solution

The fourth proportional to 157,915,777.59, 217,906,995.87 and 87,340,172.82 is: 120,520,159.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,915,777.59 : 217,906,995.87 = 87,340,172.82 : x
  2. Step 2: Convert to fraction form
    157,915,777.59/217,906,995.87 = 87,340,172.82/x
  3. Step 3: Cross multiply
    157,915,777.59x = 217,906,995.87 × 87,340,172.82
  4. Step 4: Simplify right side
    157,915,777.59x = 19,032,034,677,972,824
  5. Step 5: Solve for x
    x = 19,032,034,677,972,824/157,915,777.59
  6. Step 6: Final answer
    x = 120,520,159.34

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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.