Home / 688,517,207.28-1,032,775,179.84-215,819,650.44

Finding the Fourth Proportional to 688,517,207.28, 1,032,775,179.84 and 215,819,650.44

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Solution

The fourth proportional to 688,517,207.28, 1,032,775,179.84 and 215,819,650.44 is: 323,729,277.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,517,207.28 : 1,032,775,179.84 = 215,819,650.44 : x
  2. Step 2: Convert to fraction form
    688,517,207.28/1,032,775,179.84 = 215,819,650.44/x
  3. Step 3: Cross multiply
    688,517,207.28x = 1,032,775,179.84 × 215,819,650.44
  4. Step 4: Simplify right side
    688,517,207.28x = 222,893,178,296,176,928
  5. Step 5: Solve for x
    x = 222,893,178,296,176,928/688,517,207.28
  6. Step 6: Final answer
    x = 323,729,277.84

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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.