Home / 12,947,020.39-17,866,851.24-7,145,760.48

Finding the Fourth Proportional to 12,947,020.39, 17,866,851.24 and 7,145,760.48

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Solution

The fourth proportional to 12,947,020.39, 17,866,851.24 and 7,145,760.48 is: 9,861,129.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,020.39 : 17,866,851.24 = 7,145,760.48 : x
  2. Step 2: Convert to fraction form
    12,947,020.39/17,866,851.24 = 7,145,760.48/x
  3. Step 3: Cross multiply
    12,947,020.39x = 17,866,851.24 × 7,145,760.48
  4. Step 4: Simplify right side
    12,947,020.39x = 127,672,239,492,830.98
  5. Step 5: Solve for x
    x = 127,672,239,492,830.98/12,947,020.39
  6. Step 6: Final answer
    x = 9,861,129.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.