Home / 209,588,847.81-289,233,748.22-120,273,680.43

Finding the Fourth Proportional to 209,588,847.81, 289,233,748.22 and 120,273,680.43

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Solution

The fourth proportional to 209,588,847.81, 289,233,748.22 and 120,273,680.43 is: 165,978,332.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,588,847.81 : 289,233,748.22 = 120,273,680.43 : x
  2. Step 2: Convert to fraction form
    209,588,847.81/289,233,748.22 = 120,273,680.43/x
  3. Step 3: Cross multiply
    209,588,847.81x = 289,233,748.22 × 120,273,680.43
  4. Step 4: Simplify right side
    209,588,847.81x = 34,787,207,401,569,244
  5. Step 5: Solve for x
    x = 34,787,207,401,569,244/209,588,847.81
  6. Step 6: Final answer
    x = 165,978,332.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.