Home / 40,880,147.70-61,320,221.55-31,810,221.30

Finding the Fourth Proportional to 40,880,147.70, 61,320,221.55 and 31,810,221.30

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Solution

The fourth proportional to 40,880,147.70, 61,320,221.55 and 31,810,221.30 is: 47,715,331.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,880,147.70 : 61,320,221.55 = 31,810,221.30 : x
  2. Step 2: Convert to fraction form
    40,880,147.70/61,320,221.55 = 31,810,221.30/x
  3. Step 3: Cross multiply
    40,880,147.70x = 61,320,221.55 × 31,810,221.30
  4. Step 4: Simplify right side
    40,880,147.70x = 1,950,609,817,670,529
  5. Step 5: Solve for x
    x = 1,950,609,817,670,529/40,880,147.70
  6. Step 6: Final answer
    x = 47,715,331.95

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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.