Home / 217,618,418.40-326,427,627.60-72,074,443.20

Finding the Fourth Proportional to 217,618,418.40, 326,427,627.60 and 72,074,443.20

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Solution

The fourth proportional to 217,618,418.40, 326,427,627.60 and 72,074,443.20 is: 108,111,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,618,418.40 : 326,427,627.60 = 72,074,443.20 : x
  2. Step 2: Convert to fraction form
    217,618,418.40/326,427,627.60 = 72,074,443.20/x
  3. Step 3: Cross multiply
    217,618,418.40x = 326,427,627.60 × 72,074,443.20
  4. Step 4: Simplify right side
    217,618,418.40x = 23,527,089,504,366,956
  5. Step 5: Solve for x
    x = 23,527,089,504,366,956/217,618,418.40
  6. Step 6: Final answer
    x = 108,111,664.80

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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.