Home / 53,183,992.20-79,720,001.10-20,823,390.60

Finding the Fourth Proportional to 53,183,992.20, 79,720,001.10 and 20,823,390.60

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Solution

The fourth proportional to 53,183,992.20, 79,720,001.10 and 20,823,390.60 is: 31,213,164.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,183,992.20 : 79,720,001.10 = 20,823,390.60 : x
  2. Step 2: Convert to fraction form
    53,183,992.20/79,720,001.10 = 20,823,390.60/x
  3. Step 3: Cross multiply
    53,183,992.20x = 79,720,001.10 × 20,823,390.60
  4. Step 4: Simplify right side
    53,183,992.20x = 1,660,040,721,537,729.75
  5. Step 5: Solve for x
    x = 1,660,040,721,537,729.75/53,183,992.20
  6. Step 6: Final answer
    x = 31,213,164.96

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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.