Home / 688,517,208.28-1,032,775,181.34-215,819,651.44

Finding the Fourth Proportional to 688,517,208.28, 1,032,775,181.34 and 215,819,651.44

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Solution

The fourth proportional to 688,517,208.28, 1,032,775,181.34 and 215,819,651.44 is: 323,729,279.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,517,208.28 : 1,032,775,181.34 = 215,819,651.44 : x
  2. Step 2: Convert to fraction form
    688,517,208.28/1,032,775,181.34 = 215,819,651.44/x
  3. Step 3: Cross multiply
    688,517,208.28x = 1,032,775,181.34 × 215,819,651.44
  4. Step 4: Simplify right side
    688,517,208.28x = 222,893,179,652,681,600
  5. Step 5: Solve for x
    x = 222,893,179,652,681,600/688,517,208.28
  6. Step 6: Final answer
    x = 323,729,279.34

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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.