Home / 12,292,980.20-18,427,028.70-7,241,690.60

Finding the Fourth Proportional to 12,292,980.20, 18,427,028.70 and 7,241,690.60

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Solution

The fourth proportional to 12,292,980.20, 18,427,028.70 and 7,241,690.60 is: 10,855,206.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,292,980.20 : 18,427,028.70 = 7,241,690.60 : x
  2. Step 2: Convert to fraction form
    12,292,980.20/18,427,028.70 = 7,241,690.60/x
  3. Step 3: Cross multiply
    12,292,980.20x = 18,427,028.70 × 7,241,690.60
  4. Step 4: Simplify right side
    12,292,980.20x = 133,442,840,522,720.20
  5. Step 5: Solve for x
    x = 133,442,840,522,720.20/12,292,980.20
  6. Step 6: Final answer
    x = 10,855,206.66

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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.