Home / 12,456,468.40-18,670,705.80-6,388,855.60

Finding the Fourth Proportional to 12,456,468.40, 18,670,705.80 and 6,388,855.60

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Solution

The fourth proportional to 12,456,468.40, 18,670,705.80 and 6,388,855.60 is: 9,576,104.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,468.40 : 18,670,705.80 = 6,388,855.60 : x
  2. Step 2: Convert to fraction form
    12,456,468.40/18,670,705.80 = 6,388,855.60/x
  3. Step 3: Cross multiply
    12,456,468.40x = 18,670,705.80 × 6,388,855.60
  4. Step 4: Simplify right side
    12,456,468.40x = 119,284,443,306,282.48
  5. Step 5: Solve for x
    x = 119,284,443,306,282.48/12,456,468.40
  6. Step 6: Final answer
    x = 9,576,104.52

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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.