Home / 3,899,440.80-5,381,191.44-2,180,541.60

Finding the Fourth Proportional to 3,899,440.80, 5,381,191.44 and 2,180,541.60

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Solution

The fourth proportional to 3,899,440.80, 5,381,191.44 and 2,180,541.60 is: 3,009,126.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899,440.80 : 5,381,191.44 = 2,180,541.60 : x
  2. Step 2: Convert to fraction form
    3,899,440.80/5,381,191.44 = 2,180,541.60/x
  3. Step 3: Cross multiply
    3,899,440.80x = 5,381,191.44 × 2,180,541.60
  4. Step 4: Simplify right side
    3,899,440.80x = 11,733,911,792,483.91
  5. Step 5: Solve for x
    x = 11,733,911,792,483.91/3,899,440.80
  6. Step 6: Final answer
    x = 3,009,126.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.