Home / 8,910,406.80-13,365,610.20-8,387,859.60

Finding the Fourth Proportional to 8,910,406.80, 13,365,610.20 and 8,387,859.60

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Solution

The fourth proportional to 8,910,406.80, 13,365,610.20 and 8,387,859.60 is: 12,581,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910,406.80 : 13,365,610.20 = 8,387,859.60 : x
  2. Step 2: Convert to fraction form
    8,910,406.80/13,365,610.20 = 8,387,859.60/x
  3. Step 3: Cross multiply
    8,910,406.80x = 13,365,610.20 × 8,387,859.60
  4. Step 4: Simplify right side
    8,910,406.80x = 112,108,861,825,927.91
  5. Step 5: Solve for x
    x = 112,108,861,825,927.91/8,910,406.80
  6. Step 6: Final answer
    x = 12,581,789.40

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1.5x scale

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.