Home / 12,775,240.80-19,162,861.20-6,386,479.20

Finding the Fourth Proportional to 12,775,240.80, 19,162,861.20 and 6,386,479.20

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Solution

The fourth proportional to 12,775,240.80, 19,162,861.20 and 6,386,479.20 is: 9,579,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775,240.80 : 19,162,861.20 = 6,386,479.20 : x
  2. Step 2: Convert to fraction form
    12,775,240.80/19,162,861.20 = 6,386,479.20/x
  3. Step 3: Cross multiply
    12,775,240.80x = 19,162,861.20 × 6,386,479.20
  4. Step 4: Simplify right side
    12,775,240.80x = 122,383,214,466,287.03
  5. Step 5: Solve for x
    x = 122,383,214,466,287.03/12,775,240.80
  6. Step 6: Final answer
    x = 9,579,718.80

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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.