Home / 12,298,980.20-18,453,719.10-5,905,941.80

Finding the Fourth Proportional to 12,298,980.20, 18,453,719.10 and 5,905,941.80

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Solution

The fourth proportional to 12,298,980.20, 18,453,719.10 and 5,905,941.80 is: 8,861,433.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298,980.20 : 18,453,719.10 = 5,905,941.80 : x
  2. Step 2: Convert to fraction form
    12,298,980.20/18,453,719.10 = 5,905,941.80/x
  3. Step 3: Cross multiply
    12,298,980.20x = 18,453,719.10 × 5,905,941.80
  4. Step 4: Simplify right side
    12,298,980.20x = 108,986,590,998,148.39
  5. Step 5: Solve for x
    x = 108,986,590,998,148.39/12,298,980.20
  6. Step 6: Final answer
    x = 8,861,433.16

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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.