Home / 79,131,619.80-118,697,429.70-71,195,434.20

Finding the Fourth Proportional to 79,131,619.80, 118,697,429.70 and 71,195,434.20

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Solution

The fourth proportional to 79,131,619.80, 118,697,429.70 and 71,195,434.20 is: 106,793,151.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,131,619.80 : 118,697,429.70 = 71,195,434.20 : x
  2. Step 2: Convert to fraction form
    79,131,619.80/118,697,429.70 = 71,195,434.20/x
  3. Step 3: Cross multiply
    79,131,619.80x = 118,697,429.70 × 71,195,434.20
  4. Step 4: Simplify right side
    79,131,619.80x = 8,450,715,045,915,476
  5. Step 5: Solve for x
    x = 8,450,715,045,915,476/79,131,619.80
  6. Step 6: Final answer
    x = 106,793,151.30

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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.