Home / 12,938,021.60-19,397,701.20-8,452,824.80

Finding the Fourth Proportional to 12,938,021.60, 19,397,701.20 and 8,452,824.80

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Solution

The fourth proportional to 12,938,021.60, 19,397,701.20 and 8,452,824.80 is: 12,673,140.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,021.60 : 19,397,701.20 = 8,452,824.80 : x
  2. Step 2: Convert to fraction form
    12,938,021.60/19,397,701.20 = 8,452,824.80/x
  3. Step 3: Cross multiply
    12,938,021.60x = 19,397,701.20 × 8,452,824.80
  4. Step 4: Simplify right side
    12,938,021.60x = 163,965,369,766,349.78
  5. Step 5: Solve for x
    x = 163,965,369,766,349.78/12,938,021.60
  6. Step 6: Final answer
    x = 12,673,140.83

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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.