Home / 15,717,605.76-21,690,079.68-8,842,085.76

Finding the Fourth Proportional to 15,717,605.76, 21,690,079.68 and 8,842,085.76

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Solution

The fourth proportional to 15,717,605.76, 21,690,079.68 and 8,842,085.76 is: 12,201,956.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,717,605.76 : 21,690,079.68 = 8,842,085.76 : x
  2. Step 2: Convert to fraction form
    15,717,605.76/21,690,079.68 = 8,842,085.76/x
  3. Step 3: Cross multiply
    15,717,605.76x = 21,690,079.68 × 8,842,085.76
  4. Step 4: Simplify right side
    15,717,605.76x = 191,785,544,671,793.34
  5. Step 5: Solve for x
    x = 191,785,544,671,793.34/15,717,605.76
  6. Step 6: Final answer
    x = 12,201,956.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.