Home / 7,380,154.80-11,071,787.40-3,118,129.20

Finding the Fourth Proportional to 7,380,154.80, 11,071,787.40 and 3,118,129.20

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Solution

The fourth proportional to 7,380,154.80, 11,071,787.40 and 3,118,129.20 is: 4,677,850.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380,154.80 : 11,071,787.40 = 3,118,129.20 : x
  2. Step 2: Convert to fraction form
    7,380,154.80/11,071,787.40 = 3,118,129.20/x
  3. Step 3: Cross multiply
    7,380,154.80x = 11,071,787.40 × 3,118,129.20
  4. Step 4: Simplify right side
    7,380,154.80x = 34,523,263,588,132.08
  5. Step 5: Solve for x
    x = 34,523,263,588,132.08/7,380,154.80
  6. Step 6: Final answer
    x = 4,677,850.87

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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.