Home / 12,268,531.20-18,402,796.80-3,293,990.40

Finding the Fourth Proportional to 12,268,531.20, 18,402,796.80 and 3,293,990.40

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Solution

The fourth proportional to 12,268,531.20, 18,402,796.80 and 3,293,990.40 is: 4,940,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268,531.20 : 18,402,796.80 = 3,293,990.40 : x
  2. Step 2: Convert to fraction form
    12,268,531.20/18,402,796.80 = 3,293,990.40/x
  3. Step 3: Cross multiply
    12,268,531.20x = 18,402,796.80 × 3,293,990.40
  4. Step 4: Simplify right side
    12,268,531.20x = 60,618,635,992,350.72
  5. Step 5: Solve for x
    x = 60,618,635,992,350.72/12,268,531.20
  6. Step 6: Final answer
    x = 4,940,985.60

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1.5x scale

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.