Home / 13,378,803.94-18,418,320.43-11,999,761.17

Finding the Fourth Proportional to 13,378,803.94, 18,418,320.43 and 11,999,761.17

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Solution

The fourth proportional to 13,378,803.94, 18,418,320.43 and 11,999,761.17 is: 16,519,821.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378,803.94 : 18,418,320.43 = 11,999,761.17 : x
  2. Step 2: Convert to fraction form
    13,378,803.94/18,418,320.43 = 11,999,761.17/x
  3. Step 3: Cross multiply
    13,378,803.94x = 18,418,320.43 × 11,999,761.17
  4. Step 4: Simplify right side
    13,378,803.94x = 221,015,446,312,531.69
  5. Step 5: Solve for x
    x = 221,015,446,312,531.69/13,378,803.94
  6. Step 6: Final answer
    x = 16,519,821.00

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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.