Home / 209,588,853.08-289,233,755.46-120,273,685.68

Finding the Fourth Proportional to 209,588,853.08, 289,233,755.46 and 120,273,685.68

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Solution

The fourth proportional to 209,588,853.08, 289,233,755.46 and 120,273,685.68 is: 165,978,339.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,588,853.08 : 289,233,755.46 = 120,273,685.68 : x
  2. Step 2: Convert to fraction form
    209,588,853.08/289,233,755.46 = 120,273,685.68/x
  3. Step 3: Cross multiply
    209,588,853.08x = 289,233,755.46 × 120,273,685.68
  4. Step 4: Simplify right side
    209,588,853.08x = 34,787,209,792,242,024
  5. Step 5: Solve for x
    x = 34,787,209,792,242,024/209,588,853.08
  6. Step 6: Final answer
    x = 165,978,339.41

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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.