Home / 245,569,719.60-368,405,755.20-81,858,335.40

Finding the Fourth Proportional to 245,569,719.60, 368,405,755.20 and 81,858,335.40

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Solution

The fourth proportional to 245,569,719.60, 368,405,755.20 and 81,858,335.40 is: 122,804,562.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,569,719.60 : 368,405,755.20 = 81,858,335.40 : x
  2. Step 2: Convert to fraction form
    245,569,719.60/368,405,755.20 = 81,858,335.40/x
  3. Step 3: Cross multiply
    245,569,719.60x = 368,405,755.20 × 81,858,335.40
  4. Step 4: Simplify right side
    245,569,719.60x = 30,157,081,872,451,896
  5. Step 5: Solve for x
    x = 30,157,081,872,451,896/245,569,719.60
  6. Step 6: Final answer
    x = 122,804,562.07

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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.