Home / 159,490,099.20-239,347,123.20-68,678,860.80

Finding the Fourth Proportional to 159,490,099.20, 239,347,123.20 and 68,678,860.80

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Solution

The fourth proportional to 159,490,099.20, 239,347,123.20 and 68,678,860.80 is: 103,066,509.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,490,099.20 : 239,347,123.20 = 68,678,860.80 : x
  2. Step 2: Convert to fraction form
    159,490,099.20/239,347,123.20 = 68,678,860.80/x
  3. Step 3: Cross multiply
    159,490,099.20x = 239,347,123.20 × 68,678,860.80
  4. Step 4: Simplify right side
    159,490,099.20x = 16,438,087,757,133,250
  5. Step 5: Solve for x
    x = 16,438,087,757,133,250/159,490,099.20
  6. Step 6: Final answer
    x = 103,066,509.08

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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.