Home / 4,678,749.21-7,002,155.48-3,921,446.19

Finding the Fourth Proportional to 4,678,749.21, 7,002,155.48 and 3,921,446.19

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Solution

The fourth proportional to 4,678,749.21, 7,002,155.48 and 3,921,446.19 is: 5,868,785.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678,749.21 : 7,002,155.48 = 3,921,446.19 : x
  2. Step 2: Convert to fraction form
    4,678,749.21/7,002,155.48 = 3,921,446.19/x
  3. Step 3: Cross multiply
    4,678,749.21x = 7,002,155.48 × 3,921,446.19
  4. Step 4: Simplify right side
    4,678,749.21x = 27,458,575,909,226.39
  5. Step 5: Solve for x
    x = 27,458,575,909,226.39/4,678,749.21
  6. Step 6: Final answer
    x = 5,868,785.58

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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.