Home / 99,792,142.20-149,688,213.30-56,793,972.60

Finding the Fourth Proportional to 99,792,142.20, 149,688,213.30 and 56,793,972.60

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Solution

The fourth proportional to 99,792,142.20, 149,688,213.30 and 56,793,972.60 is: 85,190,958.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,792,142.20 : 149,688,213.30 = 56,793,972.60 : x
  2. Step 2: Convert to fraction form
    99,792,142.20/149,688,213.30 = 56,793,972.60/x
  3. Step 3: Cross multiply
    99,792,142.20x = 149,688,213.30 × 56,793,972.60
  4. Step 4: Simplify right side
    99,792,142.20x = 8,501,388,284,703,156
  5. Step 5: Solve for x
    x = 8,501,388,284,703,156/99,792,142.20
  6. Step 6: Final answer
    x = 85,190,958.90

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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.