Home / 8,419,676.40-11,618,285.78-6,215,711.43

Finding the Fourth Proportional to 8,419,676.40, 11,618,285.78 and 6,215,711.43

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Solution

The fourth proportional to 8,419,676.40, 11,618,285.78 and 6,215,711.43 is: 8,577,041.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419,676.40 : 11,618,285.78 = 6,215,711.43 : x
  2. Step 2: Convert to fraction form
    8,419,676.40/11,618,285.78 = 6,215,711.43/x
  3. Step 3: Cross multiply
    8,419,676.40x = 11,618,285.78 × 6,215,711.43
  4. Step 4: Simplify right side
    8,419,676.40x = 72,215,911,678,544.08
  5. Step 5: Solve for x
    x = 72,215,911,678,544.08/8,419,676.40
  6. Step 6: Final answer
    x = 8,577,041.24

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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.