Home / 20,775,913.61-31,165,435.72-6,201,681.37

Finding the Fourth Proportional to 20,775,913.61, 31,165,435.72 and 6,201,681.37

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Solution

The fourth proportional to 20,775,913.61, 31,165,435.72 and 6,201,681.37 is: 9,302,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775,913.61 : 31,165,435.72 = 6,201,681.37 : x
  2. Step 2: Convert to fraction form
    20,775,913.61/31,165,435.72 = 6,201,681.37/x
  3. Step 3: Cross multiply
    20,775,913.61x = 31,165,435.72 × 6,201,681.37
  4. Step 4: Simplify right side
    20,775,913.61x = 193,278,101,987,610.56
  5. Step 5: Solve for x
    x = 193,278,101,987,610.56/20,775,913.61
  6. Step 6: Final answer
    x = 9,302,989.30

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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.