Home / 7,057,843.20-9,739,419.84-3,917,945.52

Finding the Fourth Proportional to 7,057,843.20, 9,739,419.84 and 3,917,945.52

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Solution

The fourth proportional to 7,057,843.20, 9,739,419.84 and 3,917,945.52 is: 5,406,540.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,057,843.20 : 9,739,419.84 = 3,917,945.52 : x
  2. Step 2: Convert to fraction form
    7,057,843.20/9,739,419.84 = 3,917,945.52/x
  3. Step 3: Cross multiply
    7,057,843.20x = 9,739,419.84 × 3,917,945.52
  4. Step 4: Simplify right side
    7,057,843.20x = 38,158,516,329,527.12
  5. Step 5: Solve for x
    x = 38,158,516,329,527.12/7,057,843.20
  6. Step 6: Final answer
    x = 5,406,540.67

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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.