Home / 243,332,120.95-335,796,947.08-131,825,142.70

Finding the Fourth Proportional to 243,332,120.95, 335,796,947.08 and 131,825,142.70

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Solution

The fourth proportional to 243,332,120.95, 335,796,947.08 and 131,825,142.70 is: 181,917,949.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,332,120.95 : 335,796,947.08 = 131,825,142.70 : x
  2. Step 2: Convert to fraction form
    243,332,120.95/335,796,947.08 = 131,825,142.70/x
  3. Step 3: Cross multiply
    243,332,120.95x = 335,796,947.08 × 131,825,142.70
  4. Step 4: Simplify right side
    243,332,120.95x = 44,266,480,467,045,344
  5. Step 5: Solve for x
    x = 44,266,480,467,045,344/243,332,120.95
  6. Step 6: Final answer
    x = 181,917,949.40

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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.