Home / 12,862,829.12-17,750,912.16-7,062,145.60

Finding the Fourth Proportional to 12,862,829.12, 17,750,912.16 and 7,062,145.60

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Solution

The fourth proportional to 12,862,829.12, 17,750,912.16 and 7,062,145.60 is: 9,745,875.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862,829.12 : 17,750,912.16 = 7,062,145.60 : x
  2. Step 2: Convert to fraction form
    12,862,829.12/17,750,912.16 = 7,062,145.60/x
  3. Step 3: Cross multiply
    12,862,829.12x = 17,750,912.16 × 7,062,145.60
  4. Step 4: Simplify right side
    12,862,829.12x = 125,359,526,206,730.48
  5. Step 5: Solve for x
    x = 125,359,526,206,730.48/12,862,829.12
  6. Step 6: Final answer
    x = 9,745,875.11

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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.