Home / 21,352,407.60-32,028,611.40-7,886,449.20

Finding the Fourth Proportional to 21,352,407.60, 32,028,611.40 and 7,886,449.20

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Solution

The fourth proportional to 21,352,407.60, 32,028,611.40 and 7,886,449.20 is: 11,829,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,352,407.60 : 32,028,611.40 = 7,886,449.20 : x
  2. Step 2: Convert to fraction form
    21,352,407.60/32,028,611.40 = 7,886,449.20/x
  3. Step 3: Cross multiply
    21,352,407.60x = 32,028,611.40 × 7,886,449.20
  4. Step 4: Simplify right side
    21,352,407.60x = 252,592,016,752,640.88
  5. Step 5: Solve for x
    x = 252,592,016,752,640.88/21,352,407.60
  6. Step 6: Final answer
    x = 11,829,673.80

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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.