Home / 8,320,427.20-12,480,640.80-4,541,291.20

Finding the Fourth Proportional to 8,320,427.20, 12,480,640.80 and 4,541,291.20

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Solution

The fourth proportional to 8,320,427.20, 12,480,640.80 and 4,541,291.20 is: 6,811,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320,427.20 : 12,480,640.80 = 4,541,291.20 : x
  2. Step 2: Convert to fraction form
    8,320,427.20/12,480,640.80 = 4,541,291.20/x
  3. Step 3: Cross multiply
    8,320,427.20x = 12,480,640.80 × 4,541,291.20
  4. Step 4: Simplify right side
    8,320,427.20x = 56,678,224,235,400.97
  5. Step 5: Solve for x
    x = 56,678,224,235,400.97/8,320,427.20
  6. Step 6: Final answer
    x = 6,811,936.80

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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.