Home / 87,310,320.40-130,965,480.60-74,326,552.45

Finding the Fourth Proportional to 87,310,320.40, 130,965,480.60 and 74,326,552.45

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Solution

The fourth proportional to 87,310,320.40, 130,965,480.60 and 74,326,552.45 is: 111,489,828.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,310,320.40 : 130,965,480.60 = 74,326,552.45 : x
  2. Step 2: Convert to fraction form
    87,310,320.40/130,965,480.60 = 74,326,552.45/x
  3. Step 3: Cross multiply
    87,310,320.40x = 130,965,480.60 × 74,326,552.45
  4. Step 4: Simplify right side
    87,310,320.40x = 9,734,212,662,955,358
  5. Step 5: Solve for x
    x = 9,734,212,662,955,358/87,310,320.40
  6. Step 6: Final answer
    x = 111,489,828.68

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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.