Home / 210,170,819.92-315,134,262.89-99,505,560.85

Finding the Fourth Proportional to 210,170,819.92, 315,134,262.89 and 99,505,560.85

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Solution

The fourth proportional to 210,170,819.92, 315,134,262.89 and 99,505,560.85 is: 149,200,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,170,819.92 : 315,134,262.89 = 99,505,560.85 : x
  2. Step 2: Convert to fraction form
    210,170,819.92/315,134,262.89 = 99,505,560.85/x
  3. Step 3: Cross multiply
    210,170,819.92x = 315,134,262.89 × 99,505,560.85
  4. Step 4: Simplify right side
    210,170,819.92x = 31,357,611,571,920,788
  5. Step 5: Solve for x
    x = 31,357,611,571,920,788/210,170,819.92
  6. Step 6: Final answer
    x = 149,200,595.90

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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.