Home / 128,123,439.60-192,185,159.40-106,582,364.40

Finding the Fourth Proportional to 128,123,439.60, 192,185,159.40 and 106,582,364.40

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Solution

The fourth proportional to 128,123,439.60, 192,185,159.40 and 106,582,364.40 is: 159,873,546.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,123,439.60 : 192,185,159.40 = 106,582,364.40 : x
  2. Step 2: Convert to fraction form
    128,123,439.60/192,185,159.40 = 106,582,364.40/x
  3. Step 3: Cross multiply
    128,123,439.60x = 192,185,159.40 × 106,582,364.40
  4. Step 4: Simplify right side
    128,123,439.60x = 20,483,548,691,442,888
  5. Step 5: Solve for x
    x = 20,483,548,691,442,888/128,123,439.60
  6. Step 6: Final answer
    x = 159,873,546.60

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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.