Home / 121,212,724,492.80-181,819,086,739.20-55,092,961,036.80

Finding the Fourth Proportional to 121,212,724,492.80, 181,819,086,739.20 and 55,092,961,036.80

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Solution

The fourth proportional to 121,212,724,492.80, 181,819,086,739.20 and 55,092,961,036.80 is: 82,639,441,555.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,212,724,492.80 : 181,819,086,739.20 = 55,092,961,036.80 : x
  2. Step 2: Convert to fraction form
    121,212,724,492.80/181,819,086,739.20 = 55,092,961,036.80/x
  3. Step 3: Cross multiply
    121,212,724,492.80x = 181,819,086,739.20 × 55,092,961,036.80
  4. Step 4: Simplify right side
    121,212,724,492.80x = 10,016,951,861,469,306,159,104
  5. Step 5: Solve for x
    x = 10,016,951,861,469,306,159,104/121,212,724,492.80
  6. Step 6: Final answer
    x = 82,639,441,555.20

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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.