Home / 81,253,490.70-112,108,126.50-48,186,247.56

Finding the Fourth Proportional to 81,253,490.70, 112,108,126.50 and 48,186,247.56

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Solution

The fourth proportional to 81,253,490.70, 112,108,126.50 and 48,186,247.56 is: 66,484,158.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,253,490.70 : 112,108,126.50 = 48,186,247.56 : x
  2. Step 2: Convert to fraction form
    81,253,490.70/112,108,126.50 = 48,186,247.56/x
  3. Step 3: Cross multiply
    81,253,490.70x = 112,108,126.50 × 48,186,247.56
  4. Step 4: Simplify right side
    81,253,490.70x = 5,402,069,937,016,797
  5. Step 5: Solve for x
    x = 5,402,069,937,016,797/81,253,490.70
  6. Step 6: Final answer
    x = 66,484,158.29

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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.