Home / 15,842,939.04-21,861,660.24-8,966,223.72

Finding the Fourth Proportional to 15,842,939.04, 21,861,660.24 and 8,966,223.72

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Solution

The fourth proportional to 15,842,939.04, 21,861,660.24 and 8,966,223.72 is: 12,372,485.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,842,939.04 : 21,861,660.24 = 8,966,223.72 : x
  2. Step 2: Convert to fraction form
    15,842,939.04/21,861,660.24 = 8,966,223.72/x
  3. Step 3: Cross multiply
    15,842,939.04x = 21,861,660.24 × 8,966,223.72
  4. Step 4: Simplify right side
    15,842,939.04x = 196,016,536,602,468.91
  5. Step 5: Solve for x
    x = 196,016,536,602,468.91/15,842,939.04
  6. Step 6: Final answer
    x = 12,372,485.69

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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.