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Finding the Fourth Proportional to 298,952,654.40, 448,428,981.60 and 274,010,356.80

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Solution

The fourth proportional to 298,952,654.40, 448,428,981.60 and 274,010,356.80 is: 411,015,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,952,654.40 : 448,428,981.60 = 274,010,356.80 : x
  2. Step 2: Convert to fraction form
    298,952,654.40/448,428,981.60 = 274,010,356.80/x
  3. Step 3: Cross multiply
    298,952,654.40x = 448,428,981.60 × 274,010,356.80
  4. Step 4: Simplify right side
    298,952,654.40x = 122,874,185,247,676,640
  5. Step 5: Solve for x
    x = 122,874,185,247,676,640/298,952,654.40
  6. Step 6: Final answer
    x = 411,015,535.20

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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.