Home / 136,787,919.60-188,765,912.52-74,062,938.72

Finding the Fourth Proportional to 136,787,919.60, 188,765,912.52 and 74,062,938.72

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Solution

The fourth proportional to 136,787,919.60, 188,765,912.52 and 74,062,938.72 is: 102,206,088.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,787,919.60 : 188,765,912.52 = 74,062,938.72 : x
  2. Step 2: Convert to fraction form
    136,787,919.60/188,765,912.52 = 74,062,938.72/x
  3. Step 3: Cross multiply
    136,787,919.60x = 188,765,912.52 × 74,062,938.72
  4. Step 4: Simplify right side
    136,787,919.60x = 13,980,558,211,393,642
  5. Step 5: Solve for x
    x = 13,980,558,211,393,642/136,787,919.60
  6. Step 6: Final answer
    x = 102,206,088.46

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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.