Home / 202,439,912.46-279,368,405.91-109,620,424.86

Finding the Fourth Proportional to 202,439,912.46, 279,368,405.91 and 109,620,424.86

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Solution

The fourth proportional to 202,439,912.46, 279,368,405.91 and 109,620,424.86 is: 151,276,904.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,439,912.46 : 279,368,405.91 = 109,620,424.86 : x
  2. Step 2: Convert to fraction form
    202,439,912.46/279,368,405.91 = 109,620,424.86/x
  3. Step 3: Cross multiply
    202,439,912.46x = 279,368,405.91 × 109,620,424.86
  4. Step 4: Simplify right side
    202,439,912.46x = 30,624,483,348,315,136
  5. Step 5: Solve for x
    x = 30,624,483,348,315,136/202,439,912.46
  6. Step 6: Final answer
    x = 151,276,904.72

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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.