Home / 13,029,375.29-17,980,559.09-7,228,157.22

Finding the Fourth Proportional to 13,029,375.29, 17,980,559.09 and 7,228,157.22

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Solution

The fourth proportional to 13,029,375.29, 17,980,559.09 and 7,228,157.22 is: 9,974,868.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,029,375.29 : 17,980,559.09 = 7,228,157.22 : x
  2. Step 2: Convert to fraction form
    13,029,375.29/17,980,559.09 = 7,228,157.22/x
  3. Step 3: Cross multiply
    13,029,375.29x = 17,980,559.09 × 7,228,157.22
  4. Step 4: Simplify right side
    13,029,375.29x = 129,966,308,006,020.12
  5. Step 5: Solve for x
    x = 129,966,308,006,020.12/13,029,375.29
  6. Step 6: Final answer
    x = 9,974,868.72

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1.5x scale

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.