Home / 15,278,145,406.49-21,083,841,674.83-8,503,818,605.43

Finding the Fourth Proportional to 15,278,145,406.49, 21,083,841,674.83 and 8,503,818,605.43

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Solution

The fourth proportional to 15,278,145,406.49, 21,083,841,674.83 and 8,503,818,605.43 is: 11,735,270,239.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,278,145,406.49 : 21,083,841,674.83 = 8,503,818,605.43 : x
  2. Step 2: Convert to fraction form
    15,278,145,406.49/21,083,841,674.83 = 8,503,818,605.43/x
  3. Step 3: Cross multiply
    15,278,145,406.49x = 21,083,841,674.83 × 8,503,818,605.43
  4. Step 4: Simplify right side
    15,278,145,406.49x = 179,293,165,108,254,375,936
  5. Step 5: Solve for x
    x = 179,293,165,108,254,375,936/15,278,145,406.49
  6. Step 6: Final answer
    x = 11,735,270,239.81

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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.