Home / 87,156,077.40-130,734,116.10-53,143,853.40

Finding the Fourth Proportional to 87,156,077.40, 130,734,116.10 and 53,143,853.40

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Solution

The fourth proportional to 87,156,077.40, 130,734,116.10 and 53,143,853.40 is: 79,715,780.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,156,077.40 : 130,734,116.10 = 53,143,853.40 : x
  2. Step 2: Convert to fraction form
    87,156,077.40/130,734,116.10 = 53,143,853.40/x
  3. Step 3: Cross multiply
    87,156,077.40x = 130,734,116.10 × 53,143,853.40
  4. Step 4: Simplify right side
    87,156,077.40x = 6,947,714,700,396,979
  5. Step 5: Solve for x
    x = 6,947,714,700,396,979/87,156,077.40
  6. Step 6: Final answer
    x = 79,715,780.10

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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.