Home / 6,398,464.60-8,782,880.08-5,657,071.60

Finding the Fourth Proportional to 6,398,464.60, 8,782,880.08 and 5,657,071.60

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Solution

The fourth proportional to 6,398,464.60, 8,782,880.08 and 5,657,071.60 is: 7,765,203.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398,464.60 : 8,782,880.08 = 5,657,071.60 : x
  2. Step 2: Convert to fraction form
    6,398,464.60/8,782,880.08 = 5,657,071.60/x
  3. Step 3: Cross multiply
    6,398,464.60x = 8,782,880.08 × 5,657,071.60
  4. Step 4: Simplify right side
    6,398,464.60x = 49,685,381,466,773.73
  5. Step 5: Solve for x
    x = 49,685,381,466,773.73/6,398,464.60
  6. Step 6: Final answer
    x = 7,765,203.78

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.