Home / 12,481,071.40-18,707,610.30-6,413,458.60

Finding the Fourth Proportional to 12,481,071.40, 18,707,610.30 and 6,413,458.60

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Solution

The fourth proportional to 12,481,071.40, 18,707,610.30 and 6,413,458.60 is: 9,612,995.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,071.40 : 18,707,610.30 = 6,413,458.60 : x
  2. Step 2: Convert to fraction form
    12,481,071.40/18,707,610.30 = 6,413,458.60/x
  3. Step 3: Cross multiply
    12,481,071.40x = 18,707,610.30 × 6,413,458.60
  4. Step 4: Simplify right side
    12,481,071.40x = 119,980,484,163,983.58
  5. Step 5: Solve for x
    x = 119,980,484,163,983.58/12,481,071.40
  6. Step 6: Final answer
    x = 9,612,995.58

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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.