Home / 29,379,468.69-40,500,936.60-20,531,449.67

Finding the Fourth Proportional to 29,379,468.69, 40,500,936.60 and 20,531,449.67

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Solution

The fourth proportional to 29,379,468.69, 40,500,936.60 and 20,531,449.67 is: 28,303,539.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,379,468.69 : 40,500,936.60 = 20,531,449.67 : x
  2. Step 2: Convert to fraction form
    29,379,468.69/40,500,936.60 = 20,531,449.67/x
  3. Step 3: Cross multiply
    29,379,468.69x = 40,500,936.60 × 20,531,449.67
  4. Step 4: Simplify right side
    29,379,468.69x = 831,542,941,263,141.75
  5. Step 5: Solve for x
    x = 831,542,941,263,141.75/29,379,468.69
  6. Step 6: Final answer
    x = 28,303,539.11

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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.