Home / 336,989,942.80-505,484,914.20-191,871,120.40

Finding the Fourth Proportional to 336,989,942.80, 505,484,914.20 and 191,871,120.40

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Solution

The fourth proportional to 336,989,942.80, 505,484,914.20 and 191,871,120.40 is: 287,806,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,989,942.80 : 505,484,914.20 = 191,871,120.40 : x
  2. Step 2: Convert to fraction form
    336,989,942.80/505,484,914.20 = 191,871,120.40/x
  3. Step 3: Cross multiply
    336,989,942.80x = 505,484,914.20 × 191,871,120.40
  4. Step 4: Simplify right side
    336,989,942.80x = 96,987,956,832,851,872
  5. Step 5: Solve for x
    x = 96,987,956,832,851,872/336,989,942.80
  6. Step 6: Final answer
    x = 287,806,680.60

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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.