Home / 90,878,208.56-136,216,338.24-69,241,475.60

Finding the Fourth Proportional to 90,878,208.56, 136,216,338.24 and 69,241,475.60

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Solution

The fourth proportional to 90,878,208.56, 136,216,338.24 and 69,241,475.60 is: 103,785,279.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,878,208.56 : 136,216,338.24 = 69,241,475.60 : x
  2. Step 2: Convert to fraction form
    90,878,208.56/136,216,338.24 = 69,241,475.60/x
  3. Step 3: Cross multiply
    90,878,208.56x = 136,216,338.24 × 69,241,475.60
  4. Step 4: Simplify right side
    90,878,208.56x = 9,431,820,260,566,306
  5. Step 5: Solve for x
    x = 9,431,820,260,566,306/90,878,208.56
  6. Step 6: Final answer
    x = 103,785,279.33

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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.