Home / 76,731,307.40-115,095,299.31-21,397,665.98

Finding the Fourth Proportional to 76,731,307.40, 115,095,299.31 and 21,397,665.98

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Solution

The fourth proportional to 76,731,307.40, 115,095,299.31 and 21,397,665.98 is: 32,096,035.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,731,307.40 : 115,095,299.31 = 21,397,665.98 : x
  2. Step 2: Convert to fraction form
    76,731,307.40/115,095,299.31 = 21,397,665.98/x
  3. Step 3: Cross multiply
    76,731,307.40x = 115,095,299.31 × 21,397,665.98
  4. Step 4: Simplify right side
    76,731,307.40x = 2,462,770,770,503,504.50
  5. Step 5: Solve for x
    x = 2,462,770,770,503,504.50/76,731,307.40
  6. Step 6: Final answer
    x = 32,096,035.56

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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.