Home / 12,111,722.52-16,715,473.38-7,404,879.84

Finding the Fourth Proportional to 12,111,722.52, 16,715,473.38 and 7,404,879.84

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Solution

The fourth proportional to 12,111,722.52, 16,715,473.38 and 7,404,879.84 is: 10,219,526.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,111,722.52 : 16,715,473.38 = 7,404,879.84 : x
  2. Step 2: Convert to fraction form
    12,111,722.52/16,715,473.38 = 7,404,879.84/x
  3. Step 3: Cross multiply
    12,111,722.52x = 16,715,473.38 × 7,404,879.84
  4. Step 4: Simplify right side
    12,111,722.52x = 123,776,071,847,618.66
  5. Step 5: Solve for x
    x = 123,776,071,847,618.66/12,111,722.52
  6. Step 6: Final answer
    x = 10,219,526.71

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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.