Home / 40,847,839,129.91-61,290,375,812.42-20,964,689,345.92

Finding the Fourth Proportional to 40,847,839,129.91, 61,290,375,812.42 and 20,964,689,345.92

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Solution

The fourth proportional to 40,847,839,129.91, 61,290,375,812.42 and 20,964,689,345.92 is: 31,456,589,042.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,847,839,129.91 : 61,290,375,812.42 = 20,964,689,345.92 : x
  2. Step 2: Convert to fraction form
    40,847,839,129.91/61,290,375,812.42 = 20,964,689,345.92/x
  3. Step 3: Cross multiply
    40,847,839,129.91x = 61,290,375,812.42 × 20,964,689,345.92
  4. Step 4: Simplify right side
    40,847,839,129.91x = 1,284,933,688,802,074,165,248
  5. Step 5: Solve for x
    x = 1,284,933,688,802,074,165,248/40,847,839,129.91
  6. Step 6: Final answer
    x = 31,456,589,042.95

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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.