Home / 400,959,921.96-600,507,203.85-389,926,616.31

Finding the Fourth Proportional to 400,959,921.96, 600,507,203.85 and 389,926,616.31

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Solution

The fourth proportional to 400,959,921.96, 600,507,203.85 and 389,926,616.31 is: 583,982,910.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,959,921.96 : 600,507,203.85 = 389,926,616.31 : x
  2. Step 2: Convert to fraction form
    400,959,921.96/600,507,203.85 = 389,926,616.31/x
  3. Step 3: Cross multiply
    400,959,921.96x = 600,507,203.85 × 389,926,616.31
  4. Step 4: Simplify right side
    400,959,921.96x = 234,153,742,067,009,920
  5. Step 5: Solve for x
    x = 234,153,742,067,009,920/400,959,921.96
  6. Step 6: Final answer
    x = 583,982,910.12

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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.