Home / 121,311,212.70-181,966,819.05-75,394,710.30

Finding the Fourth Proportional to 121,311,212.70, 181,966,819.05 and 75,394,710.30

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Solution

The fourth proportional to 121,311,212.70, 181,966,819.05 and 75,394,710.30 is: 113,092,065.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,311,212.70 : 181,966,819.05 = 75,394,710.30 : x
  2. Step 2: Convert to fraction form
    121,311,212.70/181,966,819.05 = 75,394,710.30/x
  3. Step 3: Cross multiply
    121,311,212.70x = 181,966,819.05 × 75,394,710.30
  4. Step 4: Simplify right side
    121,311,212.70x = 13,719,335,606,487,272
  5. Step 5: Solve for x
    x = 13,719,335,606,487,272/121,311,212.70
  6. Step 6: Final answer
    x = 113,092,065.45

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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.