Home / 28,080,796.40-42,121,194.60-13,713,081.20

Finding the Fourth Proportional to 28,080,796.40, 42,121,194.60 and 13,713,081.20

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Solution

The fourth proportional to 28,080,796.40, 42,121,194.60 and 13,713,081.20 is: 20,569,621.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080,796.40 : 42,121,194.60 = 13,713,081.20 : x
  2. Step 2: Convert to fraction form
    28,080,796.40/42,121,194.60 = 13,713,081.20/x
  3. Step 3: Cross multiply
    28,080,796.40x = 42,121,194.60 × 13,713,081.20
  4. Step 4: Simplify right side
    28,080,796.40x = 577,611,361,790,801.50
  5. Step 5: Solve for x
    x = 577,611,361,790,801.50/28,080,796.40
  6. Step 6: Final answer
    x = 20,569,621.80

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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.