Home / 385,962,372.36-578,469,247.45-178,420,047.23

Finding the Fourth Proportional to 385,962,372.36, 578,469,247.45 and 178,420,047.23

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Solution

The fourth proportional to 385,962,372.36, 578,469,247.45 and 178,420,047.23 is: 267,410,809.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,962,372.36 : 578,469,247.45 = 178,420,047.23 : x
  2. Step 2: Convert to fraction form
    385,962,372.36/578,469,247.45 = 178,420,047.23/x
  3. Step 3: Cross multiply
    385,962,372.36x = 578,469,247.45 × 178,420,047.23
  4. Step 4: Simplify right side
    385,962,372.36x = 103,210,510,452,128,096
  5. Step 5: Solve for x
    x = 103,210,510,452,128,096/385,962,372.36
  6. Step 6: Final answer
    x = 267,410,809.56

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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.