Home / 511,215,770.61-705,509,378.68-282,069,423.97

Finding the Fourth Proportional to 511,215,770.61, 705,509,378.68 and 282,069,423.97

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Solution

The fourth proportional to 511,215,770.61, 705,509,378.68 and 282,069,423.97 is: 389,273,249.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,215,770.61 : 705,509,378.68 = 282,069,423.97 : x
  2. Step 2: Convert to fraction form
    511,215,770.61/705,509,378.68 = 282,069,423.97/x
  3. Step 3: Cross multiply
    511,215,770.61x = 705,509,378.68 × 282,069,423.97
  4. Step 4: Simplify right side
    511,215,770.61x = 199,002,624,049,700,192
  5. Step 5: Solve for x
    x = 199,002,624,049,700,192/511,215,770.61
  6. Step 6: Final answer
    x = 389,273,249.16

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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.