Home / 143,932,082.40-215,898,123.60-82,710,079.20

Finding the Fourth Proportional to 143,932,082.40, 215,898,123.60 and 82,710,079.20

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Solution

The fourth proportional to 143,932,082.40, 215,898,123.60 and 82,710,079.20 is: 124,065,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,932,082.40 : 215,898,123.60 = 82,710,079.20 : x
  2. Step 2: Convert to fraction form
    143,932,082.40/215,898,123.60 = 82,710,079.20/x
  3. Step 3: Cross multiply
    143,932,082.40x = 215,898,123.60 × 82,710,079.20
  4. Step 4: Simplify right side
    143,932,082.40x = 17,856,950,902,087,390
  5. Step 5: Solve for x
    x = 17,856,950,902,087,390/143,932,082.40
  6. Step 6: Final answer
    x = 124,065,118.80

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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.