Home / 18,931,713.96-28,397,569.20-4,554,781.77

Finding the Fourth Proportional to 18,931,713.96, 28,397,569.20 and 4,554,781.77

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Solution

The fourth proportional to 18,931,713.96, 28,397,569.20 and 4,554,781.77 is: 6,832,172.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,931,713.96 : 28,397,569.20 = 4,554,781.77 : x
  2. Step 2: Convert to fraction form
    18,931,713.96/28,397,569.20 = 4,554,781.77/x
  3. Step 3: Cross multiply
    18,931,713.96x = 28,397,569.20 × 4,554,781.77
  4. Step 4: Simplify right side
    18,931,713.96x = 129,344,730,504,473.47
  5. Step 5: Solve for x
    x = 129,344,730,504,473.47/18,931,713.96
  6. Step 6: Final answer
    x = 6,832,172.24

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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.