Home / 186,520,359.71-279,781,064.44-71,540,146.91

Finding the Fourth Proportional to 186,520,359.71, 279,781,064.44 and 71,540,146.91

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Solution

The fourth proportional to 186,520,359.71, 279,781,064.44 and 71,540,146.91 is: 107,310,421.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,520,359.71 : 279,781,064.44 = 71,540,146.91 : x
  2. Step 2: Convert to fraction form
    186,520,359.71/279,781,064.44 = 71,540,146.91/x
  3. Step 3: Cross multiply
    186,520,359.71x = 279,781,064.44 × 71,540,146.91
  4. Step 4: Simplify right side
    186,520,359.71x = 20,015,578,451,274,872
  5. Step 5: Solve for x
    x = 20,015,578,451,274,872/186,520,359.71
  6. Step 6: Final answer
    x = 107,310,421.68

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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.