Home / 639,299,854.80-958,976,687.16-202,617,769.95

Finding the Fourth Proportional to 639,299,854.80, 958,976,687.16 and 202,617,769.95

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Solution

The fourth proportional to 639,299,854.80, 958,976,687.16 and 202,617,769.95 is: 303,935,182.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,299,854.80 : 958,976,687.16 = 202,617,769.95 : x
  2. Step 2: Convert to fraction form
    639,299,854.80/958,976,687.16 = 202,617,769.95/x
  3. Step 3: Cross multiply
    639,299,854.80x = 958,976,687.16 × 202,617,769.95
  4. Step 4: Simplify right side
    639,299,854.80x = 194,305,717,786,397,984
  5. Step 5: Solve for x
    x = 194,305,717,786,397,984/639,299,854.80
  6. Step 6: Final answer
    x = 303,935,182.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.