Home / 129,884,522.61-179,172,685.99-80,309,048.92

Finding the Fourth Proportional to 129,884,522.61, 179,172,685.99 and 80,309,048.92

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Solution

The fourth proportional to 129,884,522.61, 179,172,685.99 and 80,309,048.92 is: 110,784,470.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,884,522.61 : 179,172,685.99 = 80,309,048.92 : x
  2. Step 2: Convert to fraction form
    129,884,522.61/179,172,685.99 = 80,309,048.92/x
  3. Step 3: Cross multiply
    129,884,522.61x = 179,172,685.99 × 80,309,048.92
  4. Step 4: Simplify right side
    129,884,522.61x = 14,389,188,004,506,868
  5. Step 5: Solve for x
    x = 14,389,188,004,506,868/129,884,522.61
  6. Step 6: Final answer
    x = 110,784,470.05

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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.