Home / 15,717,621.80-21,690,285.06-8,842,103.87

Finding the Fourth Proportional to 15,717,621.80, 21,690,285.06 and 8,842,103.87

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Solution

The fourth proportional to 15,717,621.80, 21,690,285.06 and 8,842,103.87 is: 12,202,084.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,717,621.80 : 21,690,285.06 = 8,842,103.87 : x
  2. Step 2: Convert to fraction form
    15,717,621.80/21,690,285.06 = 8,842,103.87/x
  3. Step 3: Cross multiply
    15,717,621.80x = 21,690,285.06 × 8,842,103.87
  4. Step 4: Simplify right side
    15,717,621.80x = 191,787,753,470,429.16
  5. Step 5: Solve for x
    x = 191,787,753,470,429.16/15,717,621.80
  6. Step 6: Final answer
    x = 12,202,084.76

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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.