Home / 387,084,912.40-579,831,106.20-195,716,515.60

Finding the Fourth Proportional to 387,084,912.40, 579,831,106.20 and 195,716,515.60

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Solution

The fourth proportional to 387,084,912.40, 579,831,106.20 and 195,716,515.60 is: 293,172,170.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,084,912.40 : 579,831,106.20 = 195,716,515.60 : x
  2. Step 2: Convert to fraction form
    387,084,912.40/579,831,106.20 = 195,716,515.60/x
  3. Step 3: Cross multiply
    387,084,912.40x = 579,831,106.20 × 195,716,515.60
  4. Step 4: Simplify right side
    387,084,912.40x = 113,482,523,741,957,568
  5. Step 5: Solve for x
    x = 113,482,523,741,957,568/387,084,912.40
  6. Step 6: Final answer
    x = 293,172,170.00

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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.