Home / 485,112,405.80-727,668,608.70-140,100,908.60

Finding the Fourth Proportional to 485,112,405.80, 727,668,608.70 and 140,100,908.60

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Solution

The fourth proportional to 485,112,405.80, 727,668,608.70 and 140,100,908.60 is: 210,151,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,112,405.80 : 727,668,608.70 = 140,100,908.60 : x
  2. Step 2: Convert to fraction form
    485,112,405.80/727,668,608.70 = 140,100,908.60/x
  3. Step 3: Cross multiply
    485,112,405.80x = 727,668,608.70 × 140,100,908.60
  4. Step 4: Simplify right side
    485,112,405.80x = 101,947,033,238,567,872
  5. Step 5: Solve for x
    x = 101,947,033,238,567,872/485,112,405.80
  6. Step 6: Final answer
    x = 210,151,362.90

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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.