Home / 28,387,412.25-42,670,003.26-18,734,059.79

Finding the Fourth Proportional to 28,387,412.25, 42,670,003.26 and 18,734,059.79

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Solution

The fourth proportional to 28,387,412.25, 42,670,003.26 and 18,734,059.79 is: 28,159,748.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,387,412.25 : 42,670,003.26 = 18,734,059.79 : x
  2. Step 2: Convert to fraction form
    28,387,412.25/42,670,003.26 = 18,734,059.79/x
  3. Step 3: Cross multiply
    28,387,412.25x = 42,670,003.26 × 18,734,059.79
  4. Step 4: Simplify right side
    28,387,412.25x = 799,382,392,329,250.12
  5. Step 5: Solve for x
    x = 799,382,392,329,250.12/28,387,412.25
  6. Step 6: Final answer
    x = 28,159,748.59

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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.