Home / 12,912,784.32-19,361,942.64-5,988,839.52

Finding the Fourth Proportional to 12,912,784.32, 19,361,942.64 and 5,988,839.52

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Solution

The fourth proportional to 12,912,784.32, 19,361,942.64 and 5,988,839.52 is: 8,979,904.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912,784.32 : 19,361,942.64 = 5,988,839.52 : x
  2. Step 2: Convert to fraction form
    12,912,784.32/19,361,942.64 = 5,988,839.52/x
  3. Step 3: Cross multiply
    12,912,784.32x = 19,361,942.64 × 5,988,839.52
  4. Step 4: Simplify right side
    12,912,784.32x = 115,955,567,266,405.12
  5. Step 5: Solve for x
    x = 115,955,567,266,405.12/12,912,784.32
  6. Step 6: Final answer
    x = 8,979,904.29

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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.