Home / 7,858,487.40-11,787,731.10-4,073,130.60

Finding the Fourth Proportional to 7,858,487.40, 11,787,731.10 and 4,073,130.60

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Solution

The fourth proportional to 7,858,487.40, 11,787,731.10 and 4,073,130.60 is: 6,109,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858,487.40 : 11,787,731.10 = 4,073,130.60 : x
  2. Step 2: Convert to fraction form
    7,858,487.40/11,787,731.10 = 4,073,130.60/x
  3. Step 3: Cross multiply
    7,858,487.40x = 11,787,731.10 × 4,073,130.60
  4. Step 4: Simplify right side
    7,858,487.40x = 48,012,968,247,981.66
  5. Step 5: Solve for x
    x = 48,012,968,247,981.66/7,858,487.40
  6. Step 6: Final answer
    x = 6,109,695.90

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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.