Home / 121,278,416.10-181,917,624.15-102,146,540.10

Finding the Fourth Proportional to 121,278,416.10, 181,917,624.15 and 102,146,540.10

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Solution

The fourth proportional to 121,278,416.10, 181,917,624.15 and 102,146,540.10 is: 153,219,810.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,278,416.10 : 181,917,624.15 = 102,146,540.10 : x
  2. Step 2: Convert to fraction form
    121,278,416.10/181,917,624.15 = 102,146,540.10/x
  3. Step 3: Cross multiply
    121,278,416.10x = 181,917,624.15 × 102,146,540.10
  4. Step 4: Simplify right side
    121,278,416.10x = 18,582,255,890,134,704
  5. Step 5: Solve for x
    x = 18,582,255,890,134,704/121,278,416.10
  6. Step 6: Final answer
    x = 153,219,810.15

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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.