Home / 129,884,547.28-179,172,720.04-80,309,073.60

Finding the Fourth Proportional to 129,884,547.28, 179,172,720.04 and 80,309,073.60

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Solution

The fourth proportional to 129,884,547.28, 179,172,720.04 and 80,309,073.60 is: 110,784,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,884,547.28 : 179,172,720.04 = 80,309,073.60 : x
  2. Step 2: Convert to fraction form
    129,884,547.28/179,172,720.04 = 80,309,073.60/x
  3. Step 3: Cross multiply
    129,884,547.28x = 179,172,720.04 × 80,309,073.60
  4. Step 4: Simplify right side
    129,884,547.28x = 14,389,195,160,804,554
  5. Step 5: Solve for x
    x = 14,389,195,160,804,554/129,884,547.28
  6. Step 6: Final answer
    x = 110,784,504.10

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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.