Home / 400,873,399.70-601,656,280.90-278,137,907.66

Finding the Fourth Proportional to 400,873,399.70, 601,656,280.90 and 278,137,907.66

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Solution

The fourth proportional to 400,873,399.70, 601,656,280.90 and 278,137,907.66 is: 417,447,052.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,873,399.70 : 601,656,280.90 = 278,137,907.66 : x
  2. Step 2: Convert to fraction form
    400,873,399.70/601,656,280.90 = 278,137,907.66/x
  3. Step 3: Cross multiply
    400,873,399.70x = 601,656,280.90 × 278,137,907.66
  4. Step 4: Simplify right side
    400,873,399.70x = 167,343,419,100,832,032
  5. Step 5: Solve for x
    x = 167,343,419,100,832,032/400,873,399.70
  6. Step 6: Final answer
    x = 417,447,052.43

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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.