Home / 129,053,215.80-193,019,951.70-115,504,313.40

Finding the Fourth Proportional to 129,053,215.80, 193,019,951.70 and 115,504,313.40

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Solution

The fourth proportional to 129,053,215.80, 193,019,951.70 and 115,504,313.40 is: 172,755,377.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,053,215.80 : 193,019,951.70 = 115,504,313.40 : x
  2. Step 2: Convert to fraction form
    129,053,215.80/193,019,951.70 = 115,504,313.40/x
  3. Step 3: Cross multiply
    129,053,215.80x = 193,019,951.70 × 115,504,313.40
  4. Step 4: Simplify right side
    129,053,215.80x = 22,294,636,993,609,664
  5. Step 5: Solve for x
    x = 22,294,636,993,609,664/129,053,215.80
  6. Step 6: Final answer
    x = 172,755,377.35

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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.