Home / 15,421,780.20-21,282,181.86-8,546,375.40

Finding the Fourth Proportional to 15,421,780.20, 21,282,181.86 and 8,546,375.40

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Solution

The fourth proportional to 15,421,780.20, 21,282,181.86 and 8,546,375.40 is: 11,794,067.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421,780.20 : 21,282,181.86 = 8,546,375.40 : x
  2. Step 2: Convert to fraction form
    15,421,780.20/21,282,181.86 = 8,546,375.40/x
  3. Step 3: Cross multiply
    15,421,780.20x = 21,282,181.86 × 8,546,375.40
  4. Step 4: Simplify right side
    15,421,780.20x = 181,885,515,506,630.25
  5. Step 5: Solve for x
    x = 181,885,515,506,630.25/15,421,780.20
  6. Step 6: Final answer
    x = 11,794,067.43

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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.