Home / 99,101,009.70-148,651,514.55-91,448,259.30

Finding the Fourth Proportional to 99,101,009.70, 148,651,514.55 and 91,448,259.30

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Solution

The fourth proportional to 99,101,009.70, 148,651,514.55 and 91,448,259.30 is: 137,172,388.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,101,009.70 : 148,651,514.55 = 91,448,259.30 : x
  2. Step 2: Convert to fraction form
    99,101,009.70/148,651,514.55 = 91,448,259.30/x
  3. Step 3: Cross multiply
    99,101,009.70x = 148,651,514.55 × 91,448,259.30
  4. Step 4: Simplify right side
    99,101,009.70x = 13,593,922,247,906,124
  5. Step 5: Solve for x
    x = 13,593,922,247,906,124/99,101,009.70
  6. Step 6: Final answer
    x = 137,172,388.95

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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.