Home / 21,473,440.79-32,169,520.10-12,693,433.38

Finding the Fourth Proportional to 21,473,440.79, 32,169,520.10 and 12,693,433.38

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Solution

The fourth proportional to 21,473,440.79, 32,169,520.10 and 12,693,433.38 is: 19,016,126.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,473,440.79 : 32,169,520.10 = 12,693,433.38 : x
  2. Step 2: Convert to fraction form
    21,473,440.79/32,169,520.10 = 12,693,433.38/x
  3. Step 3: Cross multiply
    21,473,440.79x = 32,169,520.10 × 12,693,433.38
  4. Step 4: Simplify right side
    21,473,440.79x = 408,341,660,192,453.81
  5. Step 5: Solve for x
    x = 408,341,660,192,453.81/21,473,440.79
  6. Step 6: Final answer
    x = 19,016,126.21

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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.