Home / 80,751,979.20-121,127,968.80-46,739,755.20

Finding the Fourth Proportional to 80,751,979.20, 121,127,968.80 and 46,739,755.20

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Solution

The fourth proportional to 80,751,979.20, 121,127,968.80 and 46,739,755.20 is: 70,109,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,751,979.20 : 121,127,968.80 = 46,739,755.20 : x
  2. Step 2: Convert to fraction form
    80,751,979.20/121,127,968.80 = 46,739,755.20/x
  3. Step 3: Cross multiply
    80,751,979.20x = 121,127,968.80 × 46,739,755.20
  4. Step 4: Simplify right side
    80,751,979.20x = 5,661,491,609,585,238
  5. Step 5: Solve for x
    x = 5,661,491,609,585,238/80,751,979.20
  6. Step 6: Final answer
    x = 70,109,632.80

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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.