Home / 131,471,357.90-197,207,036.85-80,453,021.90

Finding the Fourth Proportional to 131,471,357.90, 197,207,036.85 and 80,453,021.90

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Solution

The fourth proportional to 131,471,357.90, 197,207,036.85 and 80,453,021.90 is: 120,679,532.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,471,357.90 : 197,207,036.85 = 80,453,021.90 : x
  2. Step 2: Convert to fraction form
    131,471,357.90/197,207,036.85 = 80,453,021.90/x
  3. Step 3: Cross multiply
    131,471,357.90x = 197,207,036.85 × 80,453,021.90
  4. Step 4: Simplify right side
    131,471,357.90x = 15,865,902,054,527,158
  5. Step 5: Solve for x
    x = 15,865,902,054,527,158/131,471,357.90
  6. Step 6: Final answer
    x = 120,679,532.85

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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.