Home / 15,090,283,806.42-20,823,985,357.01-8,223,534,620.31

Finding the Fourth Proportional to 15,090,283,806.42, 20,823,985,357.01 and 8,223,534,620.31

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Solution

The fourth proportional to 15,090,283,806.42, 20,823,985,357.01 and 8,223,534,620.31 is: 11,348,147,371.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,090,283,806.42 : 20,823,985,357.01 = 8,223,534,620.31 : x
  2. Step 2: Convert to fraction form
    15,090,283,806.42/20,823,985,357.01 = 8,223,534,620.31/x
  3. Step 3: Cross multiply
    15,090,283,806.42x = 20,823,985,357.01 × 8,223,534,620.31
  4. Step 4: Simplify right side
    15,090,283,806.42x = 171,246,764,516,150,345,728
  5. Step 5: Solve for x
    x = 171,246,764,516,150,345,728/15,090,283,806.42
  6. Step 6: Final answer
    x = 11,348,147,371.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.