Home / 76,688,352.99-115,032,546.90-19,180,630.71

Finding the Fourth Proportional to 76,688,352.99, 115,032,546.90 and 19,180,630.71

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Solution

The fourth proportional to 76,688,352.99, 115,032,546.90 and 19,180,630.71 is: 28,770,950.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,688,352.99 : 115,032,546.90 = 19,180,630.71 : x
  2. Step 2: Convert to fraction form
    76,688,352.99/115,032,546.90 = 19,180,630.71/x
  3. Step 3: Cross multiply
    76,688,352.99x = 115,032,546.90 × 19,180,630.71
  4. Step 4: Simplify right side
    76,688,352.99x = 2,206,396,801,719,655.50
  5. Step 5: Solve for x
    x = 2,206,396,801,719,655.50/76,688,352.99
  6. Step 6: Final answer
    x = 28,770,950.42

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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.