Home / 12,900,557.09-17,798,760.92-7,317,883.52

Finding the Fourth Proportional to 12,900,557.09, 17,798,760.92 and 7,317,883.52

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Solution

The fourth proportional to 12,900,557.09, 17,798,760.92 and 7,317,883.52 is: 10,096,405.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900,557.09 : 17,798,760.92 = 7,317,883.52 : x
  2. Step 2: Convert to fraction form
    12,900,557.09/17,798,760.92 = 7,317,883.52/x
  3. Step 3: Cross multiply
    12,900,557.09x = 17,798,760.92 × 7,317,883.52
  4. Step 4: Simplify right side
    12,900,557.09x = 130,249,259,087,304.80
  5. Step 5: Solve for x
    x = 130,249,259,087,304.80/12,900,557.09
  6. Step 6: Final answer
    x = 10,096,405.78

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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.