Home / 13,731,048.44-18,949,732.56-7,619,476.92

Finding the Fourth Proportional to 13,731,048.44, 18,949,732.56 and 7,619,476.92

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Solution

The fourth proportional to 13,731,048.44, 18,949,732.56 and 7,619,476.92 is: 10,515,369.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731,048.44 : 18,949,732.56 = 7,619,476.92 : x
  2. Step 2: Convert to fraction form
    13,731,048.44/18,949,732.56 = 7,619,476.92/x
  3. Step 3: Cross multiply
    13,731,048.44x = 18,949,732.56 × 7,619,476.92
  4. Step 4: Simplify right side
    13,731,048.44x = 144,387,049,881,092.50
  5. Step 5: Solve for x
    x = 144,387,049,881,092.50/13,731,048.44
  6. Step 6: Final answer
    x = 10,515,369.64

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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.