Home / 386,028,313.20-579,126,450.60-127,199,487.60

Finding the Fourth Proportional to 386,028,313.20, 579,126,450.60 and 127,199,487.60

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Solution

The fourth proportional to 386,028,313.20, 579,126,450.60 and 127,199,487.60 is: 190,826,903.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,028,313.20 : 579,126,450.60 = 127,199,487.60 : x
  2. Step 2: Convert to fraction form
    386,028,313.20/579,126,450.60 = 127,199,487.60/x
  3. Step 3: Cross multiply
    386,028,313.20x = 579,126,450.60 × 127,199,487.60
  4. Step 4: Simplify right side
    386,028,313.20x = 73,664,587,771,926,720
  5. Step 5: Solve for x
    x = 73,664,587,771,926,720/386,028,313.20
  6. Step 6: Final answer
    x = 190,826,903.76

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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.