Home / 189,125,617.20-261,005,047.88-104,352,321.72

Finding the Fourth Proportional to 189,125,617.20, 261,005,047.88 and 104,352,321.72

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Solution

The fourth proportional to 189,125,617.20, 261,005,047.88 and 104,352,321.72 is: 144,012,657.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,125,617.20 : 261,005,047.88 = 104,352,321.72 : x
  2. Step 2: Convert to fraction form
    189,125,617.20/261,005,047.88 = 104,352,321.72/x
  3. Step 3: Cross multiply
    189,125,617.20x = 261,005,047.88 × 104,352,321.72
  4. Step 4: Simplify right side
    189,125,617.20x = 27,236,482,726,917,764
  5. Step 5: Solve for x
    x = 27,236,482,726,917,764/189,125,617.20
  6. Step 6: Final answer
    x = 144,012,657.46

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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.