Home / 31,679,985.09-43,718,717.75-19,456,842.09

Finding the Fourth Proportional to 31,679,985.09, 43,718,717.75 and 19,456,842.09

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Solution

The fourth proportional to 31,679,985.09, 43,718,717.75 and 19,456,842.09 is: 26,850,649.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,679,985.09 : 43,718,717.75 = 19,456,842.09 : x
  2. Step 2: Convert to fraction form
    31,679,985.09/43,718,717.75 = 19,456,842.09/x
  3. Step 3: Cross multiply
    31,679,985.09x = 43,718,717.75 × 19,456,842.09
  4. Step 4: Simplify right side
    31,679,985.09x = 850,628,187,639,030.12
  5. Step 5: Solve for x
    x = 850,628,187,639,030.12/31,679,985.09
  6. Step 6: Final answer
    x = 26,850,649.87

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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.