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Finding the Fourth Proportional to 542,994,352.40, 814,491,528.60 and 197,959,235.60

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Solution

The fourth proportional to 542,994,352.40, 814,491,528.60 and 197,959,235.60 is: 296,938,853.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,994,352.40 : 814,491,528.60 = 197,959,235.60 : x
  2. Step 2: Convert to fraction form
    542,994,352.40/814,491,528.60 = 197,959,235.60/x
  3. Step 3: Cross multiply
    542,994,352.40x = 814,491,528.60 × 197,959,235.60
  4. Step 4: Simplify right side
    542,994,352.40x = 161,236,120,404,331,552
  5. Step 5: Solve for x
    x = 161,236,120,404,331,552/542,994,352.40
  6. Step 6: Final answer
    x = 296,938,853.40

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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.