Home / 20,775,985.44-28,670,799.36-11,608,635.36

Finding the Fourth Proportional to 20,775,985.44, 28,670,799.36 and 11,608,635.36

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Solution

The fourth proportional to 20,775,985.44, 28,670,799.36 and 11,608,635.36 is: 16,019,882.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775,985.44 : 28,670,799.36 = 11,608,635.36 : x
  2. Step 2: Convert to fraction form
    20,775,985.44/28,670,799.36 = 11,608,635.36/x
  3. Step 3: Cross multiply
    20,775,985.44x = 28,670,799.36 × 11,608,635.36
  4. Step 4: Simplify right side
    20,775,985.44x = 332,828,855,249,961.38
  5. Step 5: Solve for x
    x = 332,828,855,249,961.38/20,775,985.44
  6. Step 6: Final answer
    x = 16,019,882.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.