Home / 82,366,515.20-123,549,772.80-20,955,555.20

Finding the Fourth Proportional to 82,366,515.20, 123,549,772.80 and 20,955,555.20

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Solution

The fourth proportional to 82,366,515.20, 123,549,772.80 and 20,955,555.20 is: 31,433,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,366,515.20 : 123,549,772.80 = 20,955,555.20 : x
  2. Step 2: Convert to fraction form
    82,366,515.20/123,549,772.80 = 20,955,555.20/x
  3. Step 3: Cross multiply
    82,366,515.20x = 123,549,772.80 × 20,955,555.20
  4. Step 4: Simplify right side
    82,366,515.20x = 2,589,054,083,857,858.50
  5. Step 5: Solve for x
    x = 2,589,054,083,857,858.50/82,366,515.20
  6. Step 6: Final answer
    x = 31,433,332.80

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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.