Home / 12,948,507.30-17,868,941.84-7,147,290.26

Finding the Fourth Proportional to 12,948,507.30, 17,868,941.84 and 7,147,290.26

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Solution

The fourth proportional to 12,948,507.30, 17,868,941.84 and 7,147,290.26 is: 9,863,261.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,507.30 : 17,868,941.84 = 7,147,290.26 : x
  2. Step 2: Convert to fraction form
    12,948,507.30/17,868,941.84 = 7,147,290.26/x
  3. Step 3: Cross multiply
    12,948,507.30x = 17,868,941.84 × 7,147,290.26
  4. Step 4: Simplify right side
    12,948,507.30x = 127,714,513,969,538.47
  5. Step 5: Solve for x
    x = 127,714,513,969,538.47/12,948,507.30
  6. Step 6: Final answer
    x = 9,863,261.53

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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.