Home / 12,117,325.20-18,166,948.20-7,324,004.40

Finding the Fourth Proportional to 12,117,325.20, 18,166,948.20 and 7,324,004.40

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Solution

The fourth proportional to 12,117,325.20, 18,166,948.20 and 7,324,004.40 is: 10,980,542.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117,325.20 : 18,166,948.20 = 7,324,004.40 : x
  2. Step 2: Convert to fraction form
    12,117,325.20/18,166,948.20 = 7,324,004.40/x
  3. Step 3: Cross multiply
    12,117,325.20x = 18,166,948.20 × 7,324,004.40
  4. Step 4: Simplify right side
    12,117,325.20x = 133,054,808,551,372.08
  5. Step 5: Solve for x
    x = 133,054,808,551,372.08/12,117,325.20
  6. Step 6: Final answer
    x = 10,980,542.85

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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.