Home / 217,152,279.20-325,728,418.80-193,343,722.40

Finding the Fourth Proportional to 217,152,279.20, 325,728,418.80 and 193,343,722.40

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Solution

The fourth proportional to 217,152,279.20, 325,728,418.80 and 193,343,722.40 is: 290,015,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,152,279.20 : 325,728,418.80 = 193,343,722.40 : x
  2. Step 2: Convert to fraction form
    217,152,279.20/325,728,418.80 = 193,343,722.40/x
  3. Step 3: Cross multiply
    217,152,279.20x = 325,728,418.80 × 193,343,722.40
  4. Step 4: Simplify right side
    217,152,279.20x = 62,977,544,982,258,144
  5. Step 5: Solve for x
    x = 62,977,544,982,258,144/217,152,279.20
  6. Step 6: Final answer
    x = 290,015,583.60

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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.