Home / 12,421,912.60-18,621,788.10-4,847,116.60

Finding the Fourth Proportional to 12,421,912.60, 18,621,788.10 and 4,847,116.60

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Solution

The fourth proportional to 12,421,912.60, 18,621,788.10 and 4,847,116.60 is: 7,266,351.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,421,912.60 : 18,621,788.10 = 4,847,116.60 : x
  2. Step 2: Convert to fraction form
    12,421,912.60/18,621,788.10 = 4,847,116.60/x
  3. Step 3: Cross multiply
    12,421,912.60x = 18,621,788.10 × 4,847,116.60
  4. Step 4: Simplify right side
    12,421,912.60x = 90,261,978,221,192.45
  5. Step 5: Solve for x
    x = 90,261,978,221,192.45/12,421,912.60
  6. Step 6: Final answer
    x = 7,266,351.09

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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.