Home / 486,415,912.46-729,317,338.76-412,665,461.06

Finding the Fourth Proportional to 486,415,912.46, 729,317,338.76 and 412,665,461.06

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Solution

The fourth proportional to 486,415,912.46, 729,317,338.76 and 412,665,461.06 is: 618,738,137.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,415,912.46 : 729,317,338.76 = 412,665,461.06 : x
  2. Step 2: Convert to fraction form
    486,415,912.46/729,317,338.76 = 412,665,461.06/x
  3. Step 3: Cross multiply
    486,415,912.46x = 729,317,338.76 × 412,665,461.06
  4. Step 4: Simplify right side
    486,415,912.46x = 300,964,075,855,832,704
  5. Step 5: Solve for x
    x = 300,964,075,855,832,704/486,415,912.46
  6. Step 6: Final answer
    x = 618,738,137.77

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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.