Home / 8,681,989.20-13,019,297.40-4,195,640.40

Finding the Fourth Proportional to 8,681,989.20, 13,019,297.40 and 4,195,640.40

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Solution

The fourth proportional to 8,681,989.20, 13,019,297.40 and 4,195,640.40 is: 6,291,679.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681,989.20 : 13,019,297.40 = 4,195,640.40 : x
  2. Step 2: Convert to fraction form
    8,681,989.20/13,019,297.40 = 4,195,640.40/x
  3. Step 3: Cross multiply
    8,681,989.20x = 13,019,297.40 × 4,195,640.40
  4. Step 4: Simplify right side
    8,681,989.20x = 54,624,290,151,054.97
  5. Step 5: Solve for x
    x = 54,624,290,151,054.97/8,681,989.20
  6. Step 6: Final answer
    x = 6,291,679.12

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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.