Home / 15,278,145,845.31-21,083,842,279.94-8,503,819,044.30

Finding the Fourth Proportional to 15,278,145,845.31, 21,083,842,279.94 and 8,503,819,044.30

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Solution

The fourth proportional to 15,278,145,845.31, 21,083,842,279.94 and 8,503,819,044.30 is: 11,735,270,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,278,145,845.31 : 21,083,842,279.94 = 8,503,819,044.30 : x
  2. Step 2: Convert to fraction form
    15,278,145,845.31/21,083,842,279.94 = 8,503,819,044.30/x
  3. Step 3: Cross multiply
    15,278,145,845.31x = 21,083,842,279.94 × 8,503,819,044.30
  4. Step 4: Simplify right side
    15,278,145,845.31x = 179,293,179,507,128,795,136
  5. Step 5: Solve for x
    x = 179,293,179,507,128,795,136/15,278,145,845.31
  6. Step 6: Final answer
    x = 11,735,270,845.20

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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.