Home / 288,861,716.35-398,629,168.55-165,105,050.68

Finding the Fourth Proportional to 288,861,716.35, 398,629,168.55 and 165,105,050.68

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Solution

The fourth proportional to 288,861,716.35, 398,629,168.55 and 165,105,050.68 is: 227,844,969.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,861,716.35 : 398,629,168.55 = 165,105,050.68 : x
  2. Step 2: Convert to fraction form
    288,861,716.35/398,629,168.55 = 165,105,050.68/x
  3. Step 3: Cross multiply
    288,861,716.35x = 398,629,168.55 × 165,105,050.68
  4. Step 4: Simplify right side
    288,861,716.35x = 65,815,689,075,974,016
  5. Step 5: Solve for x
    x = 65,815,689,075,974,016/288,861,716.35
  6. Step 6: Final answer
    x = 227,844,969.93

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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.