Home / 79,261,279.80-118,891,919.70-53,433,247.20

Finding the Fourth Proportional to 79,261,279.80, 118,891,919.70 and 53,433,247.20

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Solution

The fourth proportional to 79,261,279.80, 118,891,919.70 and 53,433,247.20 is: 80,149,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261,279.80 : 118,891,919.70 = 53,433,247.20 : x
  2. Step 2: Convert to fraction form
    79,261,279.80/118,891,919.70 = 53,433,247.20/x
  3. Step 3: Cross multiply
    79,261,279.80x = 118,891,919.70 × 53,433,247.20
  4. Step 4: Simplify right side
    79,261,279.80x = 6,352,781,335,412,650
  5. Step 5: Solve for x
    x = 6,352,781,335,412,650/79,261,279.80
  6. Step 6: Final answer
    x = 80,149,870.80

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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.