Home / 20,726,904.31-31,117,298.04-15,937,956.61

Finding the Fourth Proportional to 20,726,904.31, 31,117,298.04 and 15,937,956.61

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Solution

The fourth proportional to 20,726,904.31, 31,117,298.04 and 15,937,956.61 is: 23,927,651.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726,904.31 : 31,117,298.04 = 15,937,956.61 : x
  2. Step 2: Convert to fraction form
    20,726,904.31/31,117,298.04 = 15,937,956.61/x
  3. Step 3: Cross multiply
    20,726,904.31x = 31,117,298.04 × 15,937,956.61
  4. Step 4: Simplify right side
    20,726,904.31x = 495,946,145,981,958
  5. Step 5: Solve for x
    x = 495,946,145,981,958/20,726,904.31
  6. Step 6: Final answer
    x = 23,927,651.64

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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.