Home / 13,902,787.80-20,854,181.70-12,580,090.20

Finding the Fourth Proportional to 13,902,787.80, 20,854,181.70 and 12,580,090.20

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Solution

The fourth proportional to 13,902,787.80, 20,854,181.70 and 12,580,090.20 is: 18,870,135.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902,787.80 : 20,854,181.70 = 12,580,090.20 : x
  2. Step 2: Convert to fraction form
    13,902,787.80/20,854,181.70 = 12,580,090.20/x
  3. Step 3: Cross multiply
    13,902,787.80x = 20,854,181.70 × 12,580,090.20
  4. Step 4: Simplify right side
    13,902,787.80x = 262,347,486,833,189.31
  5. Step 5: Solve for x
    x = 262,347,486,833,189.31/13,902,787.80
  6. Step 6: Final answer
    x = 18,870,135.30

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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.