Home / 209,588,858.06-289,233,762.37-120,273,690.70

Finding the Fourth Proportional to 209,588,858.06, 289,233,762.37 and 120,273,690.70

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Solution

The fourth proportional to 209,588,858.06, 289,233,762.37 and 120,273,690.70 is: 165,978,346.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,588,858.06 : 289,233,762.37 = 120,273,690.70 : x
  2. Step 2: Convert to fraction form
    209,588,858.06/289,233,762.37 = 120,273,690.70/x
  3. Step 3: Cross multiply
    209,588,858.06x = 289,233,762.37 × 120,273,690.70
  4. Step 4: Simplify right side
    209,588,858.06x = 34,787,212,075,286,680
  5. Step 5: Solve for x
    x = 34,787,212,075,286,680/209,588,858.06
  6. Step 6: Final answer
    x = 165,978,346.36

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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.