Home / 8,478,049.20-12,717,073.80-6,586,148.40

Finding the Fourth Proportional to 8,478,049.20, 12,717,073.80 and 6,586,148.40

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Solution

The fourth proportional to 8,478,049.20, 12,717,073.80 and 6,586,148.40 is: 9,879,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478,049.20 : 12,717,073.80 = 6,586,148.40 : x
  2. Step 2: Convert to fraction form
    8,478,049.20/12,717,073.80 = 6,586,148.40/x
  3. Step 3: Cross multiply
    8,478,049.20x = 12,717,073.80 × 6,586,148.40
  4. Step 4: Simplify right side
    8,478,049.20x = 83,756,535,260,551.92
  5. Step 5: Solve for x
    x = 83,756,535,260,551.92/8,478,049.20
  6. Step 6: Final answer
    x = 9,879,222.60

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Similar ratio
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1.5x scale

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.