Home / 78,228,107.55-117,342,161.33-45,895,499.55

Finding the Fourth Proportional to 78,228,107.55, 117,342,161.33 and 45,895,499.55

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Solution

The fourth proportional to 78,228,107.55, 117,342,161.33 and 45,895,499.55 is: 68,843,249.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,228,107.55 : 117,342,161.33 = 45,895,499.55 : x
  2. Step 2: Convert to fraction form
    78,228,107.55/117,342,161.33 = 45,895,499.55/x
  3. Step 3: Cross multiply
    78,228,107.55x = 117,342,161.33 × 45,895,499.55
  4. Step 4: Simplify right side
    78,228,107.55x = 5,385,477,112,287,565
  5. Step 5: Solve for x
    x = 5,385,477,112,287,565/78,228,107.55
  6. Step 6: Final answer
    x = 68,843,249.33

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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.