Home / 76,801,890.12-115,202,946.05-31,363,684.62

Finding the Fourth Proportional to 76,801,890.12, 115,202,946.05 and 31,363,684.62

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Solution

The fourth proportional to 76,801,890.12, 115,202,946.05 and 31,363,684.62 is: 47,045,572.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,801,890.12 : 115,202,946.05 = 31,363,684.62 : x
  2. Step 2: Convert to fraction form
    76,801,890.12/115,202,946.05 = 31,363,684.62/x
  3. Step 3: Cross multiply
    76,801,890.12x = 115,202,946.05 × 31,363,684.62
  4. Step 4: Simplify right side
    76,801,890.12x = 3,613,188,867,207,075
  5. Step 5: Solve for x
    x = 3,613,188,867,207,075/76,801,890.12
  6. Step 6: Final answer
    x = 47,045,572.21

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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.