Home / 129,723,081.08-179,017,844.70-70,985,753.28

Finding the Fourth Proportional to 129,723,081.08, 179,017,844.70 and 70,985,753.28

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Solution

The fourth proportional to 129,723,081.08, 179,017,844.70 and 70,985,753.28 is: 97,960,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,723,081.08 : 179,017,844.70 = 70,985,753.28 : x
  2. Step 2: Convert to fraction form
    129,723,081.08/179,017,844.70 = 70,985,753.28/x
  3. Step 3: Cross multiply
    129,723,081.08x = 179,017,844.70 × 70,985,753.28
  4. Step 4: Simplify right side
    129,723,081.08x = 12,707,716,556,591,554
  5. Step 5: Solve for x
    x = 12,707,716,556,591,554/129,723,081.08
  6. Step 6: Final answer
    x = 97,960,335.60

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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.