Home / 151,384,424.40-208,910,589.24-81,769,805.22

Finding the Fourth Proportional to 151,384,424.40, 208,910,589.24 and 81,769,805.22

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Solution

The fourth proportional to 151,384,424.40, 208,910,589.24 and 81,769,805.22 is: 112,842,376.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,384,424.40 : 208,910,589.24 = 81,769,805.22 : x
  2. Step 2: Convert to fraction form
    151,384,424.40/208,910,589.24 = 81,769,805.22/x
  3. Step 3: Cross multiply
    151,384,424.40x = 208,910,589.24 × 81,769,805.22
  4. Step 4: Simplify right side
    151,384,424.40x = 17,082,578,190,550,228
  5. Step 5: Solve for x
    x = 17,082,578,190,550,228/151,384,424.40
  6. Step 6: Final answer
    x = 112,842,376.34

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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.