Home / 10,512,021.60-15,768,032.40-8,386,257.60

Finding the Fourth Proportional to 10,512,021.60, 15,768,032.40 and 8,386,257.60

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Solution

The fourth proportional to 10,512,021.60, 15,768,032.40 and 8,386,257.60 is: 12,579,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512,021.60 : 15,768,032.40 = 8,386,257.60 : x
  2. Step 2: Convert to fraction form
    10,512,021.60/15,768,032.40 = 8,386,257.60/x
  3. Step 3: Cross multiply
    10,512,021.60x = 15,768,032.40 × 8,386,257.60
  4. Step 4: Simplify right side
    10,512,021.60x = 132,234,781,551,546.23
  5. Step 5: Solve for x
    x = 132,234,781,551,546.23/10,512,021.60
  6. Step 6: Final answer
    x = 12,579,386.40

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Similar ratio
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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.