Home / 21,102,426.47-31,637,102.94-8,332,489.73

Finding the Fourth Proportional to 21,102,426.47, 31,637,102.94 and 8,332,489.73

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Solution

The fourth proportional to 21,102,426.47, 31,637,102.94 and 8,332,489.73 is: 12,492,204.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,102,426.47 : 31,637,102.94 = 8,332,489.73 : x
  2. Step 2: Convert to fraction form
    21,102,426.47/31,637,102.94 = 8,332,489.73/x
  3. Step 3: Cross multiply
    21,102,426.47x = 31,637,102.94 × 8,332,489.73
  4. Step 4: Simplify right side
    21,102,426.47x = 263,615,835,176,317.28
  5. Step 5: Solve for x
    x = 263,615,835,176,317.28/21,102,426.47
  6. Step 6: Final answer
    x = 12,492,204.89

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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.