Home / 8,419,678.65-11,618,288.89-6,215,713.67

Finding the Fourth Proportional to 8,419,678.65, 11,618,288.89 and 6,215,713.67

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Solution

The fourth proportional to 8,419,678.65, 11,618,288.89 and 6,215,713.67 is: 8,577,044.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419,678.65 : 11,618,288.89 = 6,215,713.67 : x
  2. Step 2: Convert to fraction form
    8,419,678.65/11,618,288.89 = 6,215,713.67/x
  3. Step 3: Cross multiply
    8,419,678.65x = 11,618,288.89 × 6,215,713.67
  4. Step 4: Simplify right side
    8,419,678.65x = 72,215,957,089,088.56
  5. Step 5: Solve for x
    x = 72,215,957,089,088.56/8,419,678.65
  6. Step 6: Final answer
    x = 8,577,044.34

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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.