Home / 21,167,808.60-31,760,007.30-8,386,138.20

Finding the Fourth Proportional to 21,167,808.60, 31,760,007.30 and 8,386,138.20

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Solution

The fourth proportional to 21,167,808.60, 31,760,007.30 and 8,386,138.20 is: 12,582,493.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,808.60 : 31,760,007.30 = 8,386,138.20 : x
  2. Step 2: Convert to fraction form
    21,167,808.60/31,760,007.30 = 8,386,138.20/x
  3. Step 3: Cross multiply
    21,167,808.60x = 31,760,007.30 × 8,386,138.20
  4. Step 4: Simplify right side
    21,167,808.60x = 266,343,810,450,808.88
  5. Step 5: Solve for x
    x = 266,343,810,450,808.88/21,167,808.60
  6. Step 6: Final answer
    x = 12,582,493.33

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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.