Home / 12,851,428.80-17,734,899.60-7,050,061.92

Finding the Fourth Proportional to 12,851,428.80, 17,734,899.60 and 7,050,061.92

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Solution

The fourth proportional to 12,851,428.80, 17,734,899.60 and 7,050,061.92 is: 9,729,045.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,851,428.80 : 17,734,899.60 = 7,050,061.92 : x
  2. Step 2: Convert to fraction form
    12,851,428.80/17,734,899.60 = 7,050,061.92/x
  3. Step 3: Cross multiply
    12,851,428.80x = 17,734,899.60 × 7,050,061.92
  4. Step 4: Simplify right side
    12,851,428.80x = 125,032,140,324,983.23
  5. Step 5: Solve for x
    x = 125,032,140,324,983.23/12,851,428.80
  6. Step 6: Final answer
    x = 9,729,045.87

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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.