Home / 13,356,165.78-20,029,141.44-7,287,653.58

Finding the Fourth Proportional to 13,356,165.78, 20,029,141.44 and 7,287,653.58

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Solution

The fourth proportional to 13,356,165.78, 20,029,141.44 and 7,287,653.58 is: 10,928,693.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356,165.78 : 20,029,141.44 = 7,287,653.58 : x
  2. Step 2: Convert to fraction form
    13,356,165.78/20,029,141.44 = 7,287,653.58/x
  3. Step 3: Cross multiply
    13,356,165.78x = 20,029,141.44 × 7,287,653.58
  4. Step 4: Simplify right side
    13,356,165.78x = 145,965,444,319,542.38
  5. Step 5: Solve for x
    x = 145,965,444,319,542.38/13,356,165.78
  6. Step 6: Final answer
    x = 10,928,693.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.