Home / 198,148,469.60-297,222,704.40-68,713,061.60

Finding the Fourth Proportional to 198,148,469.60, 297,222,704.40 and 68,713,061.60

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Solution

The fourth proportional to 198,148,469.60, 297,222,704.40 and 68,713,061.60 is: 103,069,592.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,148,469.60 : 297,222,704.40 = 68,713,061.60 : x
  2. Step 2: Convert to fraction form
    198,148,469.60/297,222,704.40 = 68,713,061.60/x
  3. Step 3: Cross multiply
    198,148,469.60x = 297,222,704.40 × 68,713,061.60
  4. Step 4: Simplify right side
    198,148,469.60x = 20,423,081,996,355,788
  5. Step 5: Solve for x
    x = 20,423,081,996,355,788/198,148,469.60
  6. Step 6: Final answer
    x = 103,069,592.40

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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.