Home / 77,648,082.40-116,472,123.60-39,427,487.20

Finding the Fourth Proportional to 77,648,082.40, 116,472,123.60 and 39,427,487.20

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Solution

The fourth proportional to 77,648,082.40, 116,472,123.60 and 39,427,487.20 is: 59,141,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,648,082.40 : 116,472,123.60 = 39,427,487.20 : x
  2. Step 2: Convert to fraction form
    77,648,082.40/116,472,123.60 = 39,427,487.20/x
  3. Step 3: Cross multiply
    77,648,082.40x = 116,472,123.60 × 39,427,487.20
  4. Step 4: Simplify right side
    77,648,082.40x = 4,592,203,162,395,818
  5. Step 5: Solve for x
    x = 4,592,203,162,395,818/77,648,082.40
  6. Step 6: Final answer
    x = 59,141,230.80

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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.