Home / 388,493,492.20-582,572,276.70-194,329,882.60

Finding the Fourth Proportional to 388,493,492.20, 582,572,276.70 and 194,329,882.60

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Solution

The fourth proportional to 388,493,492.20, 582,572,276.70 and 194,329,882.60 is: 291,410,807.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,493,492.20 : 582,572,276.70 = 194,329,882.60 : x
  2. Step 2: Convert to fraction form
    388,493,492.20/582,572,276.70 = 194,329,882.60/x
  3. Step 3: Cross multiply
    388,493,492.20x = 582,572,276.70 × 194,329,882.60
  4. Step 4: Simplify right side
    388,493,492.20x = 113,211,202,137,125,728
  5. Step 5: Solve for x
    x = 113,211,202,137,125,728/388,493,492.20
  6. Step 6: Final answer
    x = 291,410,807.16

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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.