Home / 7,138,850.40-9,851,690.40-3,875,700.60

Finding the Fourth Proportional to 7,138,850.40, 9,851,690.40 and 3,875,700.60

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Solution

The fourth proportional to 7,138,850.40, 9,851,690.40 and 3,875,700.60 is: 5,348,508.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138,850.40 : 9,851,690.40 = 3,875,700.60 : x
  2. Step 2: Convert to fraction form
    7,138,850.40/9,851,690.40 = 3,875,700.60/x
  3. Step 3: Cross multiply
    7,138,850.40x = 9,851,690.40 × 3,875,700.60
  4. Step 4: Simplify right side
    7,138,850.40x = 38,182,202,394,294.24
  5. Step 5: Solve for x
    x = 38,182,202,394,294.24/7,138,850.40
  6. Step 6: Final answer
    x = 5,348,508.55

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1.5x scale

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.