Home / 485,111,998.80-727,667,998.20-140,100,501.60

Finding the Fourth Proportional to 485,111,998.80, 727,667,998.20 and 140,100,501.60

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Solution

The fourth proportional to 485,111,998.80, 727,667,998.20 and 140,100,501.60 is: 210,150,752.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,111,998.80 : 727,667,998.20 = 140,100,501.60 : x
  2. Step 2: Convert to fraction form
    485,111,998.80/727,667,998.20 = 140,100,501.60/x
  3. Step 3: Cross multiply
    485,111,998.80x = 727,667,998.20 × 140,100,501.60
  4. Step 4: Simplify right side
    485,111,998.80x = 101,946,651,546,087,904
  5. Step 5: Solve for x
    x = 101,946,651,546,087,904/485,111,998.80
  6. Step 6: Final answer
    x = 210,150,752.40

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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.