Home / 8,782,541.60-12,127,347.20-5,520,406.88

Finding the Fourth Proportional to 8,782,541.60, 12,127,347.20 and 5,520,406.88

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Solution

The fourth proportional to 8,782,541.60, 12,127,347.20 and 5,520,406.88 is: 7,622,837.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782,541.60 : 12,127,347.20 = 5,520,406.88 : x
  2. Step 2: Convert to fraction form
    8,782,541.60/12,127,347.20 = 5,520,406.88/x
  3. Step 3: Cross multiply
    8,782,541.60x = 12,127,347.20 × 5,520,406.88
  4. Step 4: Simplify right side
    8,782,541.60x = 66,947,890,919,028.73
  5. Step 5: Solve for x
    x = 66,947,890,919,028.73/8,782,541.60
  6. Step 6: Final answer
    x = 7,622,837.89

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1.5x scale

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.