Home / 8,478,046.20-12,717,069.30-6,586,145.40

Finding the Fourth Proportional to 8,478,046.20, 12,717,069.30 and 6,586,145.40

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Solution

The fourth proportional to 8,478,046.20, 12,717,069.30 and 6,586,145.40 is: 9,879,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478,046.20 : 12,717,069.30 = 6,586,145.40 : x
  2. Step 2: Convert to fraction form
    8,478,046.20/12,717,069.30 = 6,586,145.40/x
  3. Step 3: Cross multiply
    8,478,046.20x = 12,717,069.30 × 6,586,145.40
  4. Step 4: Simplify right side
    8,478,046.20x = 83,756,467,471,676.23
  5. Step 5: Solve for x
    x = 83,756,467,471,676.23/8,478,046.20
  6. Step 6: Final answer
    x = 9,879,218.10

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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.