Home / 556,657,920.80-834,986,881.20-338,979,687.20

Finding the Fourth Proportional to 556,657,920.80, 834,986,881.20 and 338,979,687.20

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Solution

The fourth proportional to 556,657,920.80, 834,986,881.20 and 338,979,687.20 is: 508,469,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,657,920.80 : 834,986,881.20 = 338,979,687.20 : x
  2. Step 2: Convert to fraction form
    556,657,920.80/834,986,881.20 = 338,979,687.20/x
  3. Step 3: Cross multiply
    556,657,920.80x = 834,986,881.20 × 338,979,687.20
  4. Step 4: Simplify right side
    556,657,920.80x = 283,043,591,805,279,552
  5. Step 5: Solve for x
    x = 283,043,591,805,279,552/556,657,920.80
  6. Step 6: Final answer
    x = 508,469,530.80

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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.