Home / 2,910,967,861.80-4,365,589,884.66-811,938,132.12

Finding the Fourth Proportional to 2,910,967,861.80, 4,365,589,884.66 and 811,938,132.12

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Solution

The fourth proportional to 2,910,967,861.80, 4,365,589,884.66 and 811,938,132.12 is: 1,217,666,791.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910,967,861.80 : 4,365,589,884.66 = 811,938,132.12 : x
  2. Step 2: Convert to fraction form
    2,910,967,861.80/4,365,589,884.66 = 811,938,132.12/x
  3. Step 3: Cross multiply
    2,910,967,861.80x = 4,365,589,884.66 × 811,938,132.12
  4. Step 4: Simplify right side
    2,910,967,861.80x = 3,544,588,896,552,806,400
  5. Step 5: Solve for x
    x = 3,544,588,896,552,806,400/2,910,967,861.80
  6. Step 6: Final answer
    x = 1,217,666,791.54

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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.