Home / 140,949,685.76-194,508,179.77-79,068,695.72

Finding the Fourth Proportional to 140,949,685.76, 194,508,179.77 and 79,068,695.72

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Solution

The fourth proportional to 140,949,685.76, 194,508,179.77 and 79,068,695.72 is: 109,113,461.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,949,685.76 : 194,508,179.77 = 79,068,695.72 : x
  2. Step 2: Convert to fraction form
    140,949,685.76/194,508,179.77 = 79,068,695.72/x
  3. Step 3: Cross multiply
    140,949,685.76x = 194,508,179.77 × 79,068,695.72
  4. Step 4: Simplify right side
    140,949,685.76x = 15,379,508,081,573,788
  5. Step 5: Solve for x
    x = 15,379,508,081,573,788/140,949,685.76
  6. Step 6: Final answer
    x = 109,113,461.29

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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.