Home / 129,033,644.20-193,546,319.10-42,776,031.40

Finding the Fourth Proportional to 129,033,644.20, 193,546,319.10 and 42,776,031.40

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Solution

The fourth proportional to 129,033,644.20, 193,546,319.10 and 42,776,031.40 is: 64,162,672.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,033,644.20 : 193,546,319.10 = 42,776,031.40 : x
  2. Step 2: Convert to fraction form
    129,033,644.20/193,546,319.10 = 42,776,031.40/x
  3. Step 3: Cross multiply
    129,033,644.20x = 193,546,319.10 × 42,776,031.40
  4. Step 4: Simplify right side
    129,033,644.20x = 8,279,143,423,176,019
  5. Step 5: Solve for x
    x = 8,279,143,423,176,019/129,033,644.20
  6. Step 6: Final answer
    x = 64,162,672.26

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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.