Home / 8,383,015.40-12,574,523.10-7,887,003.80

Finding the Fourth Proportional to 8,383,015.40, 12,574,523.10 and 7,887,003.80

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Solution

The fourth proportional to 8,383,015.40, 12,574,523.10 and 7,887,003.80 is: 11,830,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,383,015.40 : 12,574,523.10 = 7,887,003.80 : x
  2. Step 2: Convert to fraction form
    8,383,015.40/12,574,523.10 = 7,887,003.80/x
  3. Step 3: Cross multiply
    8,383,015.40x = 12,574,523.10 × 7,887,003.80
  4. Step 4: Simplify right side
    8,383,015.40x = 99,175,311,472,887.78
  5. Step 5: Solve for x
    x = 99,175,311,472,887.78/8,383,015.40
  6. Step 6: Final answer
    x = 11,830,505.70

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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.