Home / 13,009,988.88-17,953,766.88-7,209,146.16

Finding the Fourth Proportional to 13,009,988.88, 17,953,766.88 and 7,209,146.16

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Solution

The fourth proportional to 13,009,988.88, 17,953,766.88 and 7,209,146.16 is: 9,948,611.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009,988.88 : 17,953,766.88 = 7,209,146.16 : x
  2. Step 2: Convert to fraction form
    13,009,988.88/17,953,766.88 = 7,209,146.16/x
  3. Step 3: Cross multiply
    13,009,988.88x = 17,953,766.88 × 7,209,146.16
  4. Step 4: Simplify right side
    13,009,988.88x = 129,431,329,560,487.17
  5. Step 5: Solve for x
    x = 129,431,329,560,487.17/13,009,988.88
  6. Step 6: Final answer
    x = 9,948,611.85

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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.