Home / 394,291,871.72-591,312,025.90-135,444,675.32

Finding the Fourth Proportional to 394,291,871.72, 591,312,025.90 and 135,444,675.32

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Solution

The fourth proportional to 394,291,871.72, 591,312,025.90 and 135,444,675.32 is: 203,123,805.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,291,871.72 : 591,312,025.90 = 135,444,675.32 : x
  2. Step 2: Convert to fraction form
    394,291,871.72/591,312,025.90 = 135,444,675.32/x
  3. Step 3: Cross multiply
    394,291,871.72x = 591,312,025.90 × 135,444,675.32
  4. Step 4: Simplify right side
    394,291,871.72x = 80,090,065,360,271,168
  5. Step 5: Solve for x
    x = 80,090,065,360,271,168/394,291,871.72
  6. Step 6: Final answer
    x = 203,123,805.24

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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.