Home / 400,959,944.46-600,507,237.60-389,926,638.81

Finding the Fourth Proportional to 400,959,944.46, 600,507,237.60 and 389,926,638.81

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Solution

The fourth proportional to 400,959,944.46, 600,507,237.60 and 389,926,638.81 is: 583,982,943.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,959,944.46 : 600,507,237.60 = 389,926,638.81 : x
  2. Step 2: Convert to fraction form
    400,959,944.46/600,507,237.60 = 389,926,638.81/x
  3. Step 3: Cross multiply
    400,959,944.46x = 600,507,237.60 × 389,926,638.81
  4. Step 4: Simplify right side
    400,959,944.46x = 234,153,768,738,446,048
  5. Step 5: Solve for x
    x = 234,153,768,738,446,048/400,959,944.46
  6. Step 6: Final answer
    x = 583,982,943.87

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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.