Home / 30,812,105-42,520,185.12-17,060,773.88

Finding the Fourth Proportional to 30,812,105, 42,520,185.12 and 17,060,773.88

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Solution

The fourth proportional to 30,812,105, 42,520,185.12 and 17,060,773.88 is: 23,543,580.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,812,105 : 42,520,185.12 = 17,060,773.88 : x
  2. Step 2: Convert to fraction form
    30,812,105/42,520,185.12 = 17,060,773.88/x
  3. Step 3: Cross multiply
    30,812,105x = 42,520,185.12 × 17,060,773.88
  4. Step 4: Simplify right side
    30,812,105x = 725,427,263,668,060.62
  5. Step 5: Solve for x
    x = 725,427,263,668,060.62/30,812,105
  6. Step 6: Final answer
    x = 23,543,580.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.