Home / 321,608,531.86-443,699,543.01-189,368,709.46

Finding the Fourth Proportional to 321,608,531.86, 443,699,543.01 and 189,368,709.46

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Solution

The fourth proportional to 321,608,531.86, 443,699,543.01 and 189,368,709.46 is: 261,258,024.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,608,531.86 : 443,699,543.01 = 189,368,709.46 : x
  2. Step 2: Convert to fraction form
    321,608,531.86/443,699,543.01 = 189,368,709.46/x
  3. Step 3: Cross multiply
    321,608,531.86x = 443,699,543.01 × 189,368,709.46
  4. Step 4: Simplify right side
    321,608,531.86x = 84,022,809,847,795,472
  5. Step 5: Solve for x
    x = 84,022,809,847,795,472/321,608,531.86
  6. Step 6: Final answer
    x = 261,258,024.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.