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Finding the Fourth Proportional to 79,709,401.80, 119,564,102.70 and 25,856,713.80

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Solution

The fourth proportional to 79,709,401.80, 119,564,102.70 and 25,856,713.80 is: 38,785,070.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,709,401.80 : 119,564,102.70 = 25,856,713.80 : x
  2. Step 2: Convert to fraction form
    79,709,401.80/119,564,102.70 = 25,856,713.80/x
  3. Step 3: Cross multiply
    79,709,401.80x = 119,564,102.70 × 25,856,713.80
  4. Step 4: Simplify right side
    79,709,401.80x = 3,091,534,784,267,707.50
  5. Step 5: Solve for x
    x = 3,091,534,784,267,707.50/79,709,401.80
  6. Step 6: Final answer
    x = 38,785,070.70

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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.