Home / 55,207,405.60-82,811,108.40-18,856,841.20

Finding the Fourth Proportional to 55,207,405.60, 82,811,108.40 and 18,856,841.20

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Solution

The fourth proportional to 55,207,405.60, 82,811,108.40 and 18,856,841.20 is: 28,285,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,207,405.60 : 82,811,108.40 = 18,856,841.20 : x
  2. Step 2: Convert to fraction form
    55,207,405.60/82,811,108.40 = 18,856,841.20/x
  3. Step 3: Cross multiply
    55,207,405.60x = 82,811,108.40 × 18,856,841.20
  4. Step 4: Simplify right side
    55,207,405.60x = 1,561,555,920,694,786.25
  5. Step 5: Solve for x
    x = 1,561,555,920,694,786.25/55,207,405.60
  6. Step 6: Final answer
    x = 28,285,261.80

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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.