Home / 12,993,882.28-17,931,339.90-7,192,539.16

Finding the Fourth Proportional to 12,993,882.28, 17,931,339.90 and 7,192,539.16

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Solution

The fourth proportional to 12,993,882.28, 17,931,339.90 and 7,192,539.16 is: 9,925,583.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,993,882.28 : 17,931,339.90 = 7,192,539.16 : x
  2. Step 2: Convert to fraction form
    12,993,882.28/17,931,339.90 = 7,192,539.16/x
  3. Step 3: Cross multiply
    12,993,882.28x = 17,931,339.90 × 7,192,539.16
  4. Step 4: Simplify right side
    12,993,882.28x = 128,971,864,422,020.47
  5. Step 5: Solve for x
    x = 128,971,864,422,020.47/12,993,882.28
  6. Step 6: Final answer
    x = 9,925,583.57

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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.