Home / 129,960,013.20-194,940,019.80-53,257,549.20

Finding the Fourth Proportional to 129,960,013.20, 194,940,019.80 and 53,257,549.20

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Solution

The fourth proportional to 129,960,013.20, 194,940,019.80 and 53,257,549.20 is: 79,886,323.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,960,013.20 : 194,940,019.80 = 53,257,549.20 : x
  2. Step 2: Convert to fraction form
    129,960,013.20/194,940,019.80 = 53,257,549.20/x
  3. Step 3: Cross multiply
    129,960,013.20x = 194,940,019.80 × 53,257,549.20
  4. Step 4: Simplify right side
    129,960,013.20x = 10,382,027,695,547,476
  5. Step 5: Solve for x
    x = 10,382,027,695,547,476/129,960,013.20
  6. Step 6: Final answer
    x = 79,886,323.80

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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.