Home / 102,877,149.20-141,969,967.32-56,468,192.72

Finding the Fourth Proportional to 102,877,149.20, 141,969,967.32 and 56,468,192.72

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Solution

The fourth proportional to 102,877,149.20, 141,969,967.32 and 56,468,192.72 is: 77,925,832.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,877,149.20 : 141,969,967.32 = 56,468,192.72 : x
  2. Step 2: Convert to fraction form
    102,877,149.20/141,969,967.32 = 56,468,192.72/x
  3. Step 3: Cross multiply
    102,877,149.20x = 141,969,967.32 × 56,468,192.72
  4. Step 4: Simplify right side
    102,877,149.20x = 8,016,787,475,077,861
  5. Step 5: Solve for x
    x = 8,016,787,475,077,861/102,877,149.20
  6. Step 6: Final answer
    x = 77,925,832.29

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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.