Home / 3,887,619.20-5,831,428.80-3,478,212.80

Finding the Fourth Proportional to 3,887,619.20, 5,831,428.80 and 3,478,212.80

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Solution

The fourth proportional to 3,887,619.20, 5,831,428.80 and 3,478,212.80 is: 5,217,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887,619.20 : 5,831,428.80 = 3,478,212.80 : x
  2. Step 2: Convert to fraction form
    3,887,619.20/5,831,428.80 = 3,478,212.80/x
  3. Step 3: Cross multiply
    3,887,619.20x = 5,831,428.80 × 3,478,212.80
  4. Step 4: Simplify right side
    3,887,619.20x = 20,282,950,294,448.64
  5. Step 5: Solve for x
    x = 20,282,950,294,448.64/3,887,619.20
  6. Step 6: Final answer
    x = 5,217,319.20

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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.