Home / 538,547,976.32-743,164,178-312,469,446.08

Finding the Fourth Proportional to 538,547,976.32, 743,164,178 and 312,469,446.08

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Solution

The fourth proportional to 538,547,976.32, 743,164,178 and 312,469,446.08 is: 431,189,251.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,547,976.32 : 743,164,178 = 312,469,446.08 : x
  2. Step 2: Convert to fraction form
    538,547,976.32/743,164,178 = 312,469,446.08/x
  3. Step 3: Cross multiply
    538,547,976.32x = 743,164,178 × 312,469,446.08
  4. Step 4: Simplify right side
    538,547,976.32x = 232,216,099,046,158,496
  5. Step 5: Solve for x
    x = 232,216,099,046,158,496/538,547,976.32
  6. Step 6: Final answer
    x = 431,189,251.95

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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.