Home / 21,580,345.49-29,780,529.23-11,790,579.47

Finding the Fourth Proportional to 21,580,345.49, 29,780,529.23 and 11,790,579.47

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Solution

The fourth proportional to 21,580,345.49, 29,780,529.23 and 11,790,579.47 is: 16,270,809.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580,345.49 : 29,780,529.23 = 11,790,579.47 : x
  2. Step 2: Convert to fraction form
    21,580,345.49/29,780,529.23 = 11,790,579.47/x
  3. Step 3: Cross multiply
    21,580,345.49x = 29,780,529.23 × 11,790,579.47
  4. Step 4: Simplify right side
    21,580,345.49x = 351,129,696,486,020.06
  5. Step 5: Solve for x
    x = 351,129,696,486,020.06/21,580,345.49
  6. Step 6: Final answer
    x = 16,270,809.78

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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.