Home / 13,378,802.94-18,418,319.06-11,999,760.17

Finding the Fourth Proportional to 13,378,802.94, 18,418,319.06 and 11,999,760.17

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Solution

The fourth proportional to 13,378,802.94, 18,418,319.06 and 11,999,760.17 is: 16,519,819.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378,802.94 : 18,418,319.06 = 11,999,760.17 : x
  2. Step 2: Convert to fraction form
    13,378,802.94/18,418,319.06 = 11,999,760.17/x
  3. Step 3: Cross multiply
    13,378,802.94x = 18,418,319.06 × 11,999,760.17
  4. Step 4: Simplify right side
    13,378,802.94x = 221,015,411,302,449.44
  5. Step 5: Solve for x
    x = 221,015,411,302,449.44/13,378,802.94
  6. Step 6: Final answer
    x = 16,519,819.62

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1.5x scale

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.