Home / 189,052,880.38-260,897,588.08-105,420,194.69

Finding the Fourth Proportional to 189,052,880.38, 260,897,588.08 and 105,420,194.69

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Solution

The fourth proportional to 189,052,880.38, 260,897,588.08 and 105,420,194.69 is: 145,482,441.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,052,880.38 : 260,897,588.08 = 105,420,194.69 : x
  2. Step 2: Convert to fraction form
    189,052,880.38/260,897,588.08 = 105,420,194.69/x
  3. Step 3: Cross multiply
    189,052,880.38x = 260,897,588.08 × 105,420,194.69
  4. Step 4: Simplify right side
    189,052,880.38x = 27,503,874,527,976,984
  5. Step 5: Solve for x
    x = 27,503,874,527,976,984/189,052,880.38
  6. Step 6: Final answer
    x = 145,482,441.07

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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.