Home / 20,480,080.54-28,261,376.84-11,185,800.08

Finding the Fourth Proportional to 20,480,080.54, 28,261,376.84 and 11,185,800.08

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Solution

The fourth proportional to 20,480,080.54, 28,261,376.84 and 11,185,800.08 is: 15,435,784.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,480,080.54 : 28,261,376.84 = 11,185,800.08 : x
  2. Step 2: Convert to fraction form
    20,480,080.54/28,261,376.84 = 11,185,800.08/x
  3. Step 3: Cross multiply
    20,480,080.54x = 28,261,376.84 × 11,185,800.08
  4. Step 4: Simplify right side
    20,480,080.54x = 316,126,111,317,782.12
  5. Step 5: Solve for x
    x = 316,126,111,317,782.12/20,480,080.54
  6. Step 6: Final answer
    x = 15,435,784.58

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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.