Home / 148,021,612.82-204,272,244.06-81,039,453.48

Finding the Fourth Proportional to 148,021,612.82, 204,272,244.06 and 81,039,453.48

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Solution

The fourth proportional to 148,021,612.82, 204,272,244.06 and 81,039,453.48 is: 111,835,769.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,021,612.82 : 204,272,244.06 = 81,039,453.48 : x
  2. Step 2: Convert to fraction form
    148,021,612.82/204,272,244.06 = 81,039,453.48/x
  3. Step 3: Cross multiply
    148,021,612.82x = 204,272,244.06 × 81,039,453.48
  4. Step 4: Simplify right side
    148,021,612.82x = 16,554,111,019,450,868
  5. Step 5: Solve for x
    x = 16,554,111,019,450,868/148,021,612.82
  6. Step 6: Final answer
    x = 111,835,769.82

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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.