Home / 87,975,201.80-131,850,828.30-78,345,403.40

Finding the Fourth Proportional to 87,975,201.80, 131,850,828.30 and 78,345,403.40

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Solution

The fourth proportional to 87,975,201.80, 131,850,828.30 and 78,345,403.40 is: 117,418,387.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,975,201.80 : 131,850,828.30 = 78,345,403.40 : x
  2. Step 2: Convert to fraction form
    87,975,201.80/131,850,828.30 = 78,345,403.40/x
  3. Step 3: Cross multiply
    87,975,201.80x = 131,850,828.30 × 78,345,403.40
  4. Step 4: Simplify right side
    87,975,201.80x = 10,329,906,331,787,636
  5. Step 5: Solve for x
    x = 10,329,906,331,787,636/87,975,201.80
  6. Step 6: Final answer
    x = 117,418,387.46

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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.