Home / 72,440,338.20-108,665,756.10-43,624,426.20

Finding the Fourth Proportional to 72,440,338.20, 108,665,756.10 and 43,624,426.20

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Solution

The fourth proportional to 72,440,338.20, 108,665,756.10 and 43,624,426.20 is: 65,439,800.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,440,338.20 : 108,665,756.10 = 43,624,426.20 : x
  2. Step 2: Convert to fraction form
    72,440,338.20/108,665,756.10 = 43,624,426.20/x
  3. Step 3: Cross multiply
    72,440,338.20x = 108,665,756.10 × 43,624,426.20
  4. Step 4: Simplify right side
    72,440,338.20x = 4,740,481,257,451,650
  5. Step 5: Solve for x
    x = 4,740,481,257,451,650/72,440,338.20
  6. Step 6: Final answer
    x = 65,439,800.19

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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.