Home / 20,269,789.55-27,971,963.86-10,977,284.11

Finding the Fourth Proportional to 20,269,789.55, 27,971,963.86 and 10,977,284.11

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Solution

The fourth proportional to 20,269,789.55, 27,971,963.86 and 10,977,284.11 is: 15,148,464.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269,789.55 : 27,971,963.86 = 10,977,284.11 : x
  2. Step 2: Convert to fraction form
    20,269,789.55/27,971,963.86 = 10,977,284.11/x
  3. Step 3: Cross multiply
    20,269,789.55x = 27,971,963.86 × 10,977,284.11
  4. Step 4: Simplify right side
    20,269,789.55x = 307,056,194,444,763.06
  5. Step 5: Solve for x
    x = 307,056,194,444,763.06/20,269,789.55
  6. Step 6: Final answer
    x = 15,148,464.85

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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.