Home / 13,771,313.70-20,656,970.55-12,259,659.30

Finding the Fourth Proportional to 13,771,313.70, 20,656,970.55 and 12,259,659.30

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Solution

The fourth proportional to 13,771,313.70, 20,656,970.55 and 12,259,659.30 is: 18,389,488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771,313.70 : 20,656,970.55 = 12,259,659.30 : x
  2. Step 2: Convert to fraction form
    13,771,313.70/20,656,970.55 = 12,259,659.30/x
  3. Step 3: Cross multiply
    13,771,313.70x = 20,656,970.55 × 12,259,659.30
  4. Step 4: Simplify right side
    13,771,313.70x = 253,247,421,113,133.62
  5. Step 5: Solve for x
    x = 253,247,421,113,133.62/13,771,313.70
  6. Step 6: Final answer
    x = 18,389,488.95

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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.