Home / 55,167,661.85-76,128,559.66-30,387,315.24

Finding the Fourth Proportional to 55,167,661.85, 76,128,559.66 and 30,387,315.24

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Solution

The fourth proportional to 55,167,661.85, 76,128,559.66 and 30,387,315.24 is: 41,932,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,167,661.85 : 76,128,559.66 = 30,387,315.24 : x
  2. Step 2: Convert to fraction form
    55,167,661.85/76,128,559.66 = 30,387,315.24/x
  3. Step 3: Cross multiply
    55,167,661.85x = 76,128,559.66 × 30,387,315.24
  4. Step 4: Simplify right side
    55,167,661.85x = 2,313,342,541,193,551
  5. Step 5: Solve for x
    x = 2,313,342,541,193,551/55,167,661.85
  6. Step 6: Final answer
    x = 41,932,945.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.