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Finding the Fourth Proportional to 79,677,712.80, 119,516,569.20 and 25,097,191.20

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Solution

The fourth proportional to 79,677,712.80, 119,516,569.20 and 25,097,191.20 is: 37,645,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,677,712.80 : 119,516,569.20 = 25,097,191.20 : x
  2. Step 2: Convert to fraction form
    79,677,712.80/119,516,569.20 = 25,097,191.20/x
  3. Step 3: Cross multiply
    79,677,712.80x = 119,516,569.20 × 25,097,191.20
  4. Step 4: Simplify right side
    79,677,712.80x = 2,999,530,188,780,431
  5. Step 5: Solve for x
    x = 2,999,530,188,780,431/79,677,712.80
  6. Step 6: Final answer
    x = 37,645,786.80

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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.