Home / 8,085,603.55-12,128,405.33-7,766,738.95

Finding the Fourth Proportional to 8,085,603.55, 12,128,405.33 and 7,766,738.95

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Solution

The fourth proportional to 8,085,603.55, 12,128,405.33 and 7,766,738.95 is: 11,650,108.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,603.55 : 12,128,405.33 = 7,766,738.95 : x
  2. Step 2: Convert to fraction form
    8,085,603.55/12,128,405.33 = 7,766,738.95/x
  3. Step 3: Cross multiply
    8,085,603.55x = 12,128,405.33 × 7,766,738.95
  4. Step 4: Simplify right side
    8,085,603.55x = 94,198,158,039,064.91
  5. Step 5: Solve for x
    x = 94,198,158,039,064.91/8,085,603.55
  6. Step 6: Final answer
    x = 11,650,108.43

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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.