Home / 145,490,472.59-218,332,096.38-79,957,375.70

Finding the Fourth Proportional to 145,490,472.59, 218,332,096.38 and 79,957,375.70

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Solution

The fourth proportional to 145,490,472.59, 218,332,096.38 and 79,957,375.70 is: 119,989,035.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,490,472.59 : 218,332,096.38 = 79,957,375.70 : x
  2. Step 2: Convert to fraction form
    145,490,472.59/218,332,096.38 = 79,957,375.70/x
  3. Step 3: Cross multiply
    145,490,472.59x = 218,332,096.38 × 79,957,375.70
  4. Step 4: Simplify right side
    145,490,472.59x = 17,457,261,456,532,608
  5. Step 5: Solve for x
    x = 17,457,261,456,532,608/145,490,472.59
  6. Step 6: Final answer
    x = 119,989,035.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.