Home / 89,861,308,561.28-124,012,503,934.25-49,763,287,949.78

Finding the Fourth Proportional to 89,861,308,561.28, 124,012,503,934.25 and 49,763,287,949.78

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Solution

The fourth proportional to 89,861,308,561.28, 124,012,503,934.25 and 49,763,287,949.78 is: 68,675,496,066.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,861,308,561.28 : 124,012,503,934.25 = 49,763,287,949.78 : x
  2. Step 2: Convert to fraction form
    89,861,308,561.28/124,012,503,934.25 = 49,763,287,949.78/x
  3. Step 3: Cross multiply
    89,861,308,561.28x = 124,012,503,934.25 × 49,763,287,949.78
  4. Step 4: Simplify right side
    89,861,308,561.28x = 6,171,269,942,653,307,846,656
  5. Step 5: Solve for x
    x = 6,171,269,942,653,307,846,656/89,861,308,561.28
  6. Step 6: Final answer
    x = 68,675,496,066.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.