Home / 199,314,481.60-298,971,722.40-78,145,933.60

Finding the Fourth Proportional to 199,314,481.60, 298,971,722.40 and 78,145,933.60

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Solution

The fourth proportional to 199,314,481.60, 298,971,722.40 and 78,145,933.60 is: 117,218,900.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,314,481.60 : 298,971,722.40 = 78,145,933.60 : x
  2. Step 2: Convert to fraction form
    199,314,481.60/298,971,722.40 = 78,145,933.60/x
  3. Step 3: Cross multiply
    199,314,481.60x = 298,971,722.40 × 78,145,933.60
  4. Step 4: Simplify right side
    199,314,481.60x = 23,363,424,366,948,028
  5. Step 5: Solve for x
    x = 23,363,424,366,948,028/199,314,481.60
  6. Step 6: Final answer
    x = 117,218,900.40

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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.