Home / 99,668,839.30-149,503,258.95-61,205,632.90

Finding the Fourth Proportional to 99,668,839.30, 149,503,258.95 and 61,205,632.90

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Solution

The fourth proportional to 99,668,839.30, 149,503,258.95 and 61,205,632.90 is: 91,808,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,668,839.30 : 149,503,258.95 = 61,205,632.90 : x
  2. Step 2: Convert to fraction form
    99,668,839.30/149,503,258.95 = 61,205,632.90/x
  3. Step 3: Cross multiply
    99,668,839.30x = 149,503,258.95 × 61,205,632.90
  4. Step 4: Simplify right side
    99,668,839.30x = 9,150,441,584,647,338
  5. Step 5: Solve for x
    x = 9,150,441,584,647,338/99,668,839.30
  6. Step 6: Final answer
    x = 91,808,449.35

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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.