Home / 79,207,543.78-109,317,616.67-43,933,147.40

Finding the Fourth Proportional to 79,207,543.78, 109,317,616.67 and 43,933,147.40

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Solution

The fourth proportional to 79,207,543.78, 109,317,616.67 and 43,933,147.40 is: 60,633,959.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,207,543.78 : 109,317,616.67 = 43,933,147.40 : x
  2. Step 2: Convert to fraction form
    79,207,543.78/109,317,616.67 = 43,933,147.40/x
  3. Step 3: Cross multiply
    79,207,543.78x = 109,317,616.67 × 43,933,147.40
  4. Step 4: Simplify right side
    79,207,543.78x = 4,802,666,966,962,934
  5. Step 5: Solve for x
    x = 4,802,666,966,962,934/79,207,543.78
  6. Step 6: Final answer
    x = 60,633,959.06

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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.