Home / 109,361,981.87-163,639,409.60-65,669,349.89

Finding the Fourth Proportional to 109,361,981.87, 163,639,409.60 and 65,669,349.89

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Solution

The fourth proportional to 109,361,981.87, 163,639,409.60 and 65,669,349.89 is: 98,261,694.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,361,981.87 : 163,639,409.60 = 65,669,349.89 : x
  2. Step 2: Convert to fraction form
    109,361,981.87/163,639,409.60 = 65,669,349.89/x
  3. Step 3: Cross multiply
    109,361,981.87x = 163,639,409.60 × 65,669,349.89
  4. Step 4: Simplify right side
    109,361,981.87x = 10,746,093,644,744,174
  5. Step 5: Solve for x
    x = 10,746,093,644,744,174/109,361,981.87
  6. Step 6: Final answer
    x = 98,261,694.43

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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.