Home / 121,276,998.20-181,915,497.30-111,923,636.60

Finding the Fourth Proportional to 121,276,998.20, 181,915,497.30 and 111,923,636.60

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Solution

The fourth proportional to 121,276,998.20, 181,915,497.30 and 111,923,636.60 is: 167,885,454.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,276,998.20 : 181,915,497.30 = 111,923,636.60 : x
  2. Step 2: Convert to fraction form
    121,276,998.20/181,915,497.30 = 111,923,636.60/x
  3. Step 3: Cross multiply
    121,276,998.20x = 181,915,497.30 × 111,923,636.60
  4. Step 4: Simplify right side
    121,276,998.20x = 20,360,644,011,713,480
  5. Step 5: Solve for x
    x = 20,360,644,011,713,480/121,276,998.20
  6. Step 6: Final answer
    x = 167,885,454.90

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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.