Home / 157,777,385.40-217,754,420.88-90,794,967.57

Finding the Fourth Proportional to 157,777,385.40, 217,754,420.88 and 90,794,967.57

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Solution

The fourth proportional to 157,777,385.40, 217,754,420.88 and 90,794,967.57 is: 125,309,501.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,777,385.40 : 217,754,420.88 = 90,794,967.57 : x
  2. Step 2: Convert to fraction form
    157,777,385.40/217,754,420.88 = 90,794,967.57/x
  3. Step 3: Cross multiply
    157,777,385.40x = 217,754,420.88 × 90,794,967.57
  4. Step 4: Simplify right side
    157,777,385.40x = 19,771,005,582,023,728
  5. Step 5: Solve for x
    x = 19,771,005,582,023,728/157,777,385.40
  6. Step 6: Final answer
    x = 125,309,501.94

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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.