Home / 159,491,109.20-239,348,638.20-68,679,870.80

Finding the Fourth Proportional to 159,491,109.20, 239,348,638.20 and 68,679,870.80

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Solution

The fourth proportional to 159,491,109.20, 239,348,638.20 and 68,679,870.80 is: 103,068,024.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,491,109.20 : 239,348,638.20 = 68,679,870.80 : x
  2. Step 2: Convert to fraction form
    159,491,109.20/239,348,638.20 = 68,679,870.80/x
  3. Step 3: Cross multiply
    159,491,109.20x = 239,348,638.20 × 68,679,870.80
  4. Step 4: Simplify right side
    159,491,109.20x = 16,438,433,547,731,944
  5. Step 5: Solve for x
    x = 16,438,433,547,731,944/159,491,109.20
  6. Step 6: Final answer
    x = 103,068,024.48

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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.