Home / 653,447,905.20-980,171,857.80-505,494,730.80

Finding the Fourth Proportional to 653,447,905.20, 980,171,857.80 and 505,494,730.80

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Solution

The fourth proportional to 653,447,905.20, 980,171,857.80 and 505,494,730.80 is: 758,242,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,447,905.20 : 980,171,857.80 = 505,494,730.80 : x
  2. Step 2: Convert to fraction form
    653,447,905.20/980,171,857.80 = 505,494,730.80/x
  3. Step 3: Cross multiply
    653,447,905.20x = 980,171,857.80 × 505,494,730.80
  4. Step 4: Simplify right side
    653,447,905.20x = 495,471,709,396,346,880
  5. Step 5: Solve for x
    x = 495,471,709,396,346,880/653,447,905.20
  6. Step 6: Final answer
    x = 758,242,096.20

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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.