Home / 12,985,575.68-17,918,519.18-7,480,732.65

Finding the Fourth Proportional to 12,985,575.68, 17,918,519.18 and 7,480,732.65

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Solution

The fourth proportional to 12,985,575.68, 17,918,519.18 and 7,480,732.65 is: 10,322,503.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,985,575.68 : 17,918,519.18 = 7,480,732.65 : x
  2. Step 2: Convert to fraction form
    12,985,575.68/17,918,519.18 = 7,480,732.65/x
  3. Step 3: Cross multiply
    12,985,575.68x = 17,918,519.18 × 7,480,732.65
  4. Step 4: Simplify right side
    12,985,575.68x = 134,043,651,432,073.58
  5. Step 5: Solve for x
    x = 134,043,651,432,073.58/12,985,575.68
  6. Step 6: Final answer
    x = 10,322,503.58

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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.