Home / 198,144,069.60-297,216,104.40-68,708,661.60

Finding the Fourth Proportional to 198,144,069.60, 297,216,104.40 and 68,708,661.60

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Solution

The fourth proportional to 198,144,069.60, 297,216,104.40 and 68,708,661.60 is: 103,062,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,144,069.60 : 297,216,104.40 = 68,708,661.60 : x
  2. Step 2: Convert to fraction form
    198,144,069.60/297,216,104.40 = 68,708,661.60/x
  3. Step 3: Cross multiply
    198,144,069.60x = 297,216,104.40 × 68,708,661.60
  4. Step 4: Simplify right side
    198,144,069.60x = 20,421,320,739,289,868
  5. Step 5: Solve for x
    x = 20,421,320,739,289,868/198,144,069.60
  6. Step 6: Final answer
    x = 103,062,992.40

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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.