Home / 15,339,194.88-21,168,532-8,464,119.68

Finding the Fourth Proportional to 15,339,194.88, 21,168,532 and 8,464,119.68

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Solution

The fourth proportional to 15,339,194.88, 21,168,532 and 8,464,119.68 is: 11,680,729.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339,194.88 : 21,168,532 = 8,464,119.68 : x
  2. Step 2: Convert to fraction form
    15,339,194.88/21,168,532 = 8,464,119.68/x
  3. Step 3: Cross multiply
    15,339,194.88x = 21,168,532 × 8,464,119.68
  4. Step 4: Simplify right side
    15,339,194.88x = 179,172,988,297,909.75
  5. Step 5: Solve for x
    x = 179,172,988,297,909.75/15,339,194.88
  6. Step 6: Final answer
    x = 11,680,729.64

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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.