Home / 28,578,128.72-42,651,226.12-25,820,034.96

Finding the Fourth Proportional to 28,578,128.72, 42,651,226.12 and 25,820,034.96

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Solution

The fourth proportional to 28,578,128.72, 42,651,226.12 and 25,820,034.96 is: 38,534,928.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,578,128.72 : 42,651,226.12 = 25,820,034.96 : x
  2. Step 2: Convert to fraction form
    28,578,128.72/42,651,226.12 = 25,820,034.96/x
  3. Step 3: Cross multiply
    28,578,128.72x = 42,651,226.12 × 25,820,034.96
  4. Step 4: Simplify right side
    28,578,128.72x = 1,101,256,149,505,265.12
  5. Step 5: Solve for x
    x = 1,101,256,149,505,265.12/28,578,128.72
  6. Step 6: Final answer
    x = 38,534,928.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.