Home / 129,884,528.60-179,172,694.24-80,309,054.92

Finding the Fourth Proportional to 129,884,528.60, 179,172,694.24 and 80,309,054.92

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Solution

The fourth proportional to 129,884,528.60, 179,172,694.24 and 80,309,054.92 is: 110,784,478.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,884,528.60 : 179,172,694.24 = 80,309,054.92 : x
  2. Step 2: Convert to fraction form
    129,884,528.60/179,172,694.24 = 80,309,054.92/x
  3. Step 3: Cross multiply
    129,884,528.60x = 179,172,694.24 × 80,309,054.92
  4. Step 4: Simplify right side
    129,884,528.60x = 14,389,189,741,884,528
  5. Step 5: Solve for x
    x = 14,389,189,741,884,528/129,884,528.60
  6. Step 6: Final answer
    x = 110,784,478.31

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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.