Home / 407,998,602.28-612,117,976.04-131,644,632.16

Finding the Fourth Proportional to 407,998,602.28, 612,117,976.04 and 131,644,632.16

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Solution

The fourth proportional to 407,998,602.28, 612,117,976.04 and 131,644,632.16 is: 197,505,690.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,998,602.28 : 612,117,976.04 = 131,644,632.16 : x
  2. Step 2: Convert to fraction form
    407,998,602.28/612,117,976.04 = 131,644,632.16/x
  3. Step 3: Cross multiply
    407,998,602.28x = 612,117,976.04 × 131,644,632.16
  4. Step 4: Simplify right side
    407,998,602.28x = 80,582,045,794,309,488
  5. Step 5: Solve for x
    x = 80,582,045,794,309,488/407,998,602.28
  6. Step 6: Final answer
    x = 197,505,690.81

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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.