Home / 8,086,276.20-12,129,414.30-7,424,927.40

Finding the Fourth Proportional to 8,086,276.20, 12,129,414.30 and 7,424,927.40

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Solution

The fourth proportional to 8,086,276.20, 12,129,414.30 and 7,424,927.40 is: 11,137,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086,276.20 : 12,129,414.30 = 7,424,927.40 : x
  2. Step 2: Convert to fraction form
    8,086,276.20/12,129,414.30 = 7,424,927.40/x
  3. Step 3: Cross multiply
    8,086,276.20x = 12,129,414.30 × 7,424,927.40
  4. Step 4: Simplify right side
    8,086,276.20x = 90,060,020,582,021.83
  5. Step 5: Solve for x
    x = 90,060,020,582,021.83/8,086,276.20
  6. Step 6: Final answer
    x = 11,137,391.10

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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.