Home / 259,920,098.40-389,880,147.60-219,105,429.60

Finding the Fourth Proportional to 259,920,098.40, 389,880,147.60 and 219,105,429.60

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Solution

The fourth proportional to 259,920,098.40, 389,880,147.60 and 219,105,429.60 is: 328,658,144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,920,098.40 : 389,880,147.60 = 219,105,429.60 : x
  2. Step 2: Convert to fraction form
    259,920,098.40/389,880,147.60 = 219,105,429.60/x
  3. Step 3: Cross multiply
    259,920,098.40x = 389,880,147.60 × 219,105,429.60
  4. Step 4: Simplify right side
    259,920,098.40x = 85,424,857,232,409,408
  5. Step 5: Solve for x
    x = 85,424,857,232,409,408/259,920,098.40
  6. Step 6: Final answer
    x = 328,658,144.40

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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.