Home / 8,419,678.90-11,618,289.22-6,215,713.93

Finding the Fourth Proportional to 8,419,678.90, 11,618,289.22 and 6,215,713.93

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Solution

The fourth proportional to 8,419,678.90, 11,618,289.22 and 6,215,713.93 is: 8,577,044.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419,678.90 : 11,618,289.22 = 6,215,713.93 : x
  2. Step 2: Convert to fraction form
    8,419,678.90/11,618,289.22 = 6,215,713.93/x
  3. Step 3: Cross multiply
    8,419,678.90x = 11,618,289.22 × 6,215,713.93
  4. Step 4: Simplify right side
    8,419,678.90x = 72,215,962,147,522.83
  5. Step 5: Solve for x
    x = 72,215,962,147,522.83/8,419,678.90
  6. Step 6: Final answer
    x = 8,577,044.68

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1.5x scale

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.