Home / 431,517,243.20-647,275,864.80-424,350,881.60

Finding the Fourth Proportional to 431,517,243.20, 647,275,864.80 and 424,350,881.60

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Solution

The fourth proportional to 431,517,243.20, 647,275,864.80 and 424,350,881.60 is: 636,526,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,517,243.20 : 647,275,864.80 = 424,350,881.60 : x
  2. Step 2: Convert to fraction form
    431,517,243.20/647,275,864.80 = 424,350,881.60/x
  3. Step 3: Cross multiply
    431,517,243.20x = 647,275,864.80 × 424,350,881.60
  4. Step 4: Simplify right side
    431,517,243.20x = 274,672,083,866,282,400
  5. Step 5: Solve for x
    x = 274,672,083,866,282,400/431,517,243.20
  6. Step 6: Final answer
    x = 636,526,322.40

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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.