Home / 217,131,100.80-325,743,890.40-71,539,886.40

Finding the Fourth Proportional to 217,131,100.80, 325,743,890.40 and 71,539,886.40

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Solution

The fourth proportional to 217,131,100.80, 325,743,890.40 and 71,539,886.40 is: 107,325,393.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,131,100.80 : 325,743,890.40 = 71,539,886.40 : x
  2. Step 2: Convert to fraction form
    217,131,100.80/325,743,890.40 = 71,539,886.40/x
  3. Step 3: Cross multiply
    217,131,100.80x = 325,743,890.40 × 71,539,886.40
  4. Step 4: Simplify right side
    217,131,100.80x = 23,303,680,914,710,052
  5. Step 5: Solve for x
    x = 23,303,680,914,710,052/217,131,100.80
  6. Step 6: Final answer
    x = 107,325,393.87

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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.