Home / 5,181,123.20-7,767,998.40-1,985,014.40

Finding the Fourth Proportional to 5,181,123.20, 7,767,998.40 and 1,985,014.40

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Solution

The fourth proportional to 5,181,123.20, 7,767,998.40 and 1,985,014.40 is: 2,976,109.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181,123.20 : 7,767,998.40 = 1,985,014.40 : x
  2. Step 2: Convert to fraction form
    5,181,123.20/7,767,998.40 = 1,985,014.40/x
  3. Step 3: Cross multiply
    5,181,123.20x = 7,767,998.40 × 1,985,014.40
  4. Step 4: Simplify right side
    5,181,123.20x = 15,419,588,683,176.96
  5. Step 5: Solve for x
    x = 15,419,588,683,176.96/5,181,123.20
  6. Step 6: Final answer
    x = 2,976,109.25

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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.