Home / 75,213,907.70-112,820,861.55-68,756,899.55

Finding the Fourth Proportional to 75,213,907.70, 112,820,861.55 and 68,756,899.55

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Solution

The fourth proportional to 75,213,907.70, 112,820,861.55 and 68,756,899.55 is: 103,135,349.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,213,907.70 : 112,820,861.55 = 68,756,899.55 : x
  2. Step 2: Convert to fraction form
    75,213,907.70/112,820,861.55 = 68,756,899.55/x
  3. Step 3: Cross multiply
    75,213,907.70x = 112,820,861.55 × 68,756,899.55
  4. Step 4: Simplify right side
    75,213,907.70x = 7,757,212,644,737,807
  5. Step 5: Solve for x
    x = 7,757,212,644,737,807/75,213,907.70
  6. Step 6: Final answer
    x = 103,135,349.33

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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.