Home / 78,082,301.32-107,749,428.12-45,040,584.69

Finding the Fourth Proportional to 78,082,301.32, 107,749,428.12 and 45,040,584.69

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Solution

The fourth proportional to 78,082,301.32, 107,749,428.12 and 45,040,584.69 is: 62,153,614.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,082,301.32 : 107,749,428.12 = 45,040,584.69 : x
  2. Step 2: Convert to fraction form
    78,082,301.32/107,749,428.12 = 45,040,584.69/x
  3. Step 3: Cross multiply
    78,082,301.32x = 107,749,428.12 × 45,040,584.69
  4. Step 4: Simplify right side
    78,082,301.32x = 4,853,097,242,537,927
  5. Step 5: Solve for x
    x = 4,853,097,242,537,927/78,082,301.32
  6. Step 6: Final answer
    x = 62,153,614.33

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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.