Home / 79,804,987.20-119,707,480.80-43,399,310.40

Finding the Fourth Proportional to 79,804,987.20, 119,707,480.80 and 43,399,310.40

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Solution

The fourth proportional to 79,804,987.20, 119,707,480.80 and 43,399,310.40 is: 65,098,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,804,987.20 : 119,707,480.80 = 43,399,310.40 : x
  2. Step 2: Convert to fraction form
    79,804,987.20/119,707,480.80 = 43,399,310.40/x
  3. Step 3: Cross multiply
    79,804,987.20x = 119,707,480.80 × 43,399,310.40
  4. Step 4: Simplify right side
    79,804,987.20x = 5,195,222,116,441,240
  5. Step 5: Solve for x
    x = 5,195,222,116,441,240/79,804,987.20
  6. Step 6: Final answer
    x = 65,098,965.60

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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.