Home / 38,218,774-52,741,120.80-20,815,425.04

Finding the Fourth Proportional to 38,218,774, 52,741,120.80 and 20,815,425.04

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Solution

The fourth proportional to 38,218,774, 52,741,120.80 and 20,815,425.04 is: 28,724,857.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,218,774 : 52,741,120.80 = 20,815,425.04 : x
  2. Step 2: Convert to fraction form
    38,218,774/52,741,120.80 = 20,815,425.04/x
  3. Step 3: Cross multiply
    38,218,774x = 52,741,120.80 × 20,815,425.04
  4. Step 4: Simplify right side
    38,218,774x = 1,097,828,846,537,984.75
  5. Step 5: Solve for x
    x = 1,097,828,846,537,984.75/38,218,774
  6. Step 6: Final answer
    x = 28,724,857.75

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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.