Home / 321,062,391.81-443,058,565.02-188,911,947.70

Finding the Fourth Proportional to 321,062,391.81, 443,058,565.02 and 188,911,947.70

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Solution

The fourth proportional to 321,062,391.81, 443,058,565.02 and 188,911,947.70 is: 260,694,053.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,062,391.81 : 443,058,565.02 = 188,911,947.70 : x
  2. Step 2: Convert to fraction form
    321,062,391.81/443,058,565.02 = 188,911,947.70/x
  3. Step 3: Cross multiply
    321,062,391.81x = 443,058,565.02 × 188,911,947.70
  4. Step 4: Simplify right side
    321,062,391.81x = 83,699,056,463,649,104
  5. Step 5: Solve for x
    x = 83,699,056,463,649,104/321,062,391.81
  6. Step 6: Final answer
    x = 260,694,053.86

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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.