Home / 151,425,523.70-208,967,370.54-81,810,959.94

Finding the Fourth Proportional to 151,425,523.70, 208,967,370.54 and 81,810,959.94

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Solution

The fourth proportional to 151,425,523.70, 208,967,370.54 and 81,810,959.94 is: 112,899,204.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,425,523.70 : 208,967,370.54 = 81,810,959.94 : x
  2. Step 2: Convert to fraction form
    151,425,523.70/208,967,370.54 = 81,810,959.94/x
  3. Step 3: Cross multiply
    151,425,523.70x = 208,967,370.54 × 81,810,959.94
  4. Step 4: Simplify right side
    151,425,523.70x = 17,095,821,180,015,074
  5. Step 5: Solve for x
    x = 17,095,821,180,015,074/151,425,523.70
  6. Step 6: Final answer
    x = 112,899,204.59

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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.