Home / 186,629,918.40-279,454,989.60-131,746,132.80

Finding the Fourth Proportional to 186,629,918.40, 279,454,989.60 and 131,746,132.80

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Solution

The fourth proportional to 186,629,918.40, 279,454,989.60 and 131,746,132.80 is: 197,273,376.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,629,918.40 : 279,454,989.60 = 131,746,132.80 : x
  2. Step 2: Convert to fraction form
    186,629,918.40/279,454,989.60 = 131,746,132.80/x
  3. Step 3: Cross multiply
    186,629,918.40x = 279,454,989.60 × 131,746,132.80
  4. Step 4: Simplify right side
    186,629,918.40x = 36,817,114,171,464,224
  5. Step 5: Solve for x
    x = 36,817,114,171,464,224/186,629,918.40
  6. Step 6: Final answer
    x = 197,273,376.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.