Home / 198,144,067.60-297,216,101.40-68,708,659.60

Finding the Fourth Proportional to 198,144,067.60, 297,216,101.40 and 68,708,659.60

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Solution

The fourth proportional to 198,144,067.60, 297,216,101.40 and 68,708,659.60 is: 103,062,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,144,067.60 : 297,216,101.40 = 68,708,659.60 : x
  2. Step 2: Convert to fraction form
    198,144,067.60/297,216,101.40 = 68,708,659.60/x
  3. Step 3: Cross multiply
    198,144,067.60x = 297,216,101.40 × 68,708,659.60
  4. Step 4: Simplify right side
    198,144,067.60x = 20,421,319,938,731,680
  5. Step 5: Solve for x
    x = 20,421,319,938,731,680/198,144,067.60
  6. Step 6: Final answer
    x = 103,062,989.40

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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.