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Finding the Fourth Proportional to 68,669,589.80, 102,988,404.70 and 25,559,095.88

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Solution

The fourth proportional to 68,669,589.80, 102,988,404.70 and 25,559,095.88 is: 38,332,696.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,669,589.80 : 102,988,404.70 = 25,559,095.88 : x
  2. Step 2: Convert to fraction form
    68,669,589.80/102,988,404.70 = 25,559,095.88/x
  3. Step 3: Cross multiply
    68,669,589.80x = 102,988,404.70 × 25,559,095.88
  4. Step 4: Simplify right side
    68,669,589.80x = 2,632,290,510,255,542.50
  5. Step 5: Solve for x
    x = 2,632,290,510,255,542.50/68,669,589.80
  6. Step 6: Final answer
    x = 38,332,696.00

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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.