Home / 68,688,234.30-103,000,858.65-30,330,003.90

Finding the Fourth Proportional to 68,688,234.30, 103,000,858.65 and 30,330,003.90

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Solution

The fourth proportional to 68,688,234.30, 103,000,858.65 and 30,330,003.90 is: 45,481,099.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,688,234.30 : 103,000,858.65 = 30,330,003.90 : x
  2. Step 2: Convert to fraction form
    68,688,234.30/103,000,858.65 = 30,330,003.90/x
  3. Step 3: Cross multiply
    68,688,234.30x = 103,000,858.65 × 30,330,003.90
  4. Step 4: Simplify right side
    68,688,234.30x = 3,124,016,444,557,849
  5. Step 5: Solve for x
    x = 3,124,016,444,557,849/68,688,234.30
  6. Step 6: Final answer
    x = 45,481,099.88

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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.