Home / 485,112,513.80-727,668,770.70-140,101,016.60

Finding the Fourth Proportional to 485,112,513.80, 727,668,770.70 and 140,101,016.60

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Solution

The fourth proportional to 485,112,513.80, 727,668,770.70 and 140,101,016.60 is: 210,151,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,112,513.80 : 727,668,770.70 = 140,101,016.60 : x
  2. Step 2: Convert to fraction form
    485,112,513.80/727,668,770.70 = 140,101,016.60/x
  3. Step 3: Cross multiply
    485,112,513.80x = 727,668,770.70 × 140,101,016.60
  4. Step 4: Simplify right side
    485,112,513.80x = 101,947,134,523,142,288
  5. Step 5: Solve for x
    x = 101,947,134,523,142,288/485,112,513.80
  6. Step 6: Final answer
    x = 210,151,524.90

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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.