Home / 7,078,012.64-9,767,540.20-3,938,158.60

Finding the Fourth Proportional to 7,078,012.64, 9,767,540.20 and 3,938,158.60

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Solution

The fourth proportional to 7,078,012.64, 9,767,540.20 and 3,938,158.60 is: 5,434,593.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078,012.64 : 9,767,540.20 = 3,938,158.60 : x
  2. Step 2: Convert to fraction form
    7,078,012.64/9,767,540.20 = 3,938,158.60/x
  3. Step 3: Cross multiply
    7,078,012.64x = 9,767,540.20 × 3,938,158.60
  4. Step 4: Simplify right side
    7,078,012.64x = 38,466,122,439,475.72
  5. Step 5: Solve for x
    x = 38,466,122,439,475.72/7,078,012.64
  6. Step 6: Final answer
    x = 5,434,593.63

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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.