Home / 8,859,143.20-13,288,714.80-8,691,181.60

Finding the Fourth Proportional to 8,859,143.20, 13,288,714.80 and 8,691,181.60

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Solution

The fourth proportional to 8,859,143.20, 13,288,714.80 and 8,691,181.60 is: 13,036,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859,143.20 : 13,288,714.80 = 8,691,181.60 : x
  2. Step 2: Convert to fraction form
    8,859,143.20/13,288,714.80 = 8,691,181.60/x
  3. Step 3: Cross multiply
    8,859,143.20x = 13,288,714.80 × 8,691,181.60
  4. Step 4: Simplify right side
    8,859,143.20x = 115,494,633,557,407.69
  5. Step 5: Solve for x
    x = 115,494,633,557,407.69/8,859,143.20
  6. Step 6: Final answer
    x = 13,036,772.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.