Home / 243,278,357.28-335,721,460.32-131,766,423.84

Finding the Fourth Proportional to 243,278,357.28, 335,721,460.32 and 131,766,423.84

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Solution

The fourth proportional to 243,278,357.28, 335,721,460.32 and 131,766,423.84 is: 181,836,217.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,278,357.28 : 335,721,460.32 = 131,766,423.84 : x
  2. Step 2: Convert to fraction form
    243,278,357.28/335,721,460.32 = 131,766,423.84/x
  3. Step 3: Cross multiply
    243,278,357.28x = 335,721,460.32 × 131,766,423.84
  4. Step 4: Simplify right side
    243,278,357.28x = 44,236,816,232,708,864
  5. Step 5: Solve for x
    x = 44,236,816,232,708,864/243,278,357.28
  6. Step 6: Final answer
    x = 181,836,217.28

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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.