Home / 87,310,331.40-130,965,497.10-74,326,563.45

Finding the Fourth Proportional to 87,310,331.40, 130,965,497.10 and 74,326,563.45

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Solution

The fourth proportional to 87,310,331.40, 130,965,497.10 and 74,326,563.45 is: 111,489,845.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,310,331.40 : 130,965,497.10 = 74,326,563.45 : x
  2. Step 2: Convert to fraction form
    87,310,331.40/130,965,497.10 = 74,326,563.45/x
  3. Step 3: Cross multiply
    87,310,331.40x = 130,965,497.10 × 74,326,563.45
  4. Step 4: Simplify right side
    87,310,331.40x = 9,734,215,329,963,940
  5. Step 5: Solve for x
    x = 9,734,215,329,963,940/87,310,331.40
  6. Step 6: Final answer
    x = 111,489,845.18

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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.