Home / 20,269,928.52-27,972,155.66-10,977,423.28

Finding the Fourth Proportional to 20,269,928.52, 27,972,155.66 and 10,977,423.28

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Solution

The fourth proportional to 20,269,928.52, 27,972,155.66 and 10,977,423.28 is: 15,148,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269,928.52 : 27,972,155.66 = 10,977,423.28 : x
  2. Step 2: Convert to fraction form
    20,269,928.52/27,972,155.66 = 10,977,423.28/x
  3. Step 3: Cross multiply
    20,269,928.52x = 27,972,155.66 × 10,977,423.28
  4. Step 4: Simplify right side
    20,269,928.52x = 307,062,192,609,050.25
  5. Step 5: Solve for x
    x = 307,062,192,609,050.25/20,269,928.52
  6. Step 6: Final answer
    x = 15,148,656.90

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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.