Home / 126,372,212.80-189,558,319.20-105,964,878.40

Finding the Fourth Proportional to 126,372,212.80, 189,558,319.20 and 105,964,878.40

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Solution

The fourth proportional to 126,372,212.80, 189,558,319.20 and 105,964,878.40 is: 158,947,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,372,212.80 : 189,558,319.20 = 105,964,878.40 : x
  2. Step 2: Convert to fraction form
    126,372,212.80/189,558,319.20 = 105,964,878.40/x
  3. Step 3: Cross multiply
    126,372,212.80x = 189,558,319.20 × 105,964,878.40
  4. Step 4: Simplify right side
    126,372,212.80x = 20,086,524,243,736,384
  5. Step 5: Solve for x
    x = 20,086,524,243,736,384/126,372,212.80
  6. Step 6: Final answer
    x = 158,947,317.60

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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.