Home / 28,775,139.60-43,162,709.40-20,744,475.60

Finding the Fourth Proportional to 28,775,139.60, 43,162,709.40 and 20,744,475.60

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Solution

The fourth proportional to 28,775,139.60, 43,162,709.40 and 20,744,475.60 is: 31,116,713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775,139.60 : 43,162,709.40 = 20,744,475.60 : x
  2. Step 2: Convert to fraction form
    28,775,139.60/43,162,709.40 = 20,744,475.60/x
  3. Step 3: Cross multiply
    28,775,139.60x = 43,162,709.40 × 20,744,475.60
  4. Step 4: Simplify right side
    28,775,139.60x = 895,387,771,978,190.62
  5. Step 5: Solve for x
    x = 895,387,771,978,190.62/28,775,139.60
  6. Step 6: Final answer
    x = 31,116,713.40

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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.