Home / 129,455,999.80-194,183,999.70-52,737,206.20

Finding the Fourth Proportional to 129,455,999.80, 194,183,999.70 and 52,737,206.20

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Solution

The fourth proportional to 129,455,999.80, 194,183,999.70 and 52,737,206.20 is: 79,105,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,455,999.80 : 194,183,999.70 = 52,737,206.20 : x
  2. Step 2: Convert to fraction form
    129,455,999.80/194,183,999.70 = 52,737,206.20/x
  3. Step 3: Cross multiply
    129,455,999.80x = 194,183,999.70 × 52,737,206.20
  4. Step 4: Simplify right side
    129,455,999.80x = 10,240,721,632,919,638
  5. Step 5: Solve for x
    x = 10,240,721,632,919,638/129,455,999.80
  6. Step 6: Final answer
    x = 79,105,809.30

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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.