Home / 81,964,815.40-123,088,940.70-43,701,063.40

Finding the Fourth Proportional to 81,964,815.40, 123,088,940.70 and 43,701,063.40

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Solution

The fourth proportional to 81,964,815.40, 123,088,940.70 and 43,701,063.40 is: 65,627,154.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,964,815.40 : 123,088,940.70 = 43,701,063.40 : x
  2. Step 2: Convert to fraction form
    81,964,815.40/123,088,940.70 = 43,701,063.40/x
  3. Step 3: Cross multiply
    81,964,815.40x = 123,088,940.70 × 43,701,063.40
  4. Step 4: Simplify right side
    81,964,815.40x = 5,379,117,601,369,540
  5. Step 5: Solve for x
    x = 5,379,117,601,369,540/81,964,815.40
  6. Step 6: Final answer
    x = 65,627,154.47

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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.