Home / 129,960,012.20-194,940,018.30-53,257,548.20

Finding the Fourth Proportional to 129,960,012.20, 194,940,018.30 and 53,257,548.20

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Solution

The fourth proportional to 129,960,012.20, 194,940,018.30 and 53,257,548.20 is: 79,886,322.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,960,012.20 : 194,940,018.30 = 53,257,548.20 : x
  2. Step 2: Convert to fraction form
    129,960,012.20/194,940,018.30 = 53,257,548.20/x
  3. Step 3: Cross multiply
    129,960,012.20x = 194,940,018.30 × 53,257,548.20
  4. Step 4: Simplify right side
    129,960,012.20x = 10,382,027,420,721,134
  5. Step 5: Solve for x
    x = 10,382,027,420,721,134/129,960,012.20
  6. Step 6: Final answer
    x = 79,886,322.30

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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.