Home / 407,998,552.39-612,117,901.03-131,644,582.28

Finding the Fourth Proportional to 407,998,552.39, 612,117,901.03 and 131,644,582.28

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Solution

The fourth proportional to 407,998,552.39, 612,117,901.03 and 131,644,582.28 is: 197,505,615.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,998,552.39 : 612,117,901.03 = 131,644,582.28 : x
  2. Step 2: Convert to fraction form
    407,998,552.39/612,117,901.03 = 131,644,582.28/x
  3. Step 3: Cross multiply
    407,998,552.39x = 612,117,901.03 × 131,644,582.28
  4. Step 4: Simplify right side
    407,998,552.39x = 80,582,005,387,533,840
  5. Step 5: Solve for x
    x = 80,582,005,387,533,840/407,998,552.39
  6. Step 6: Final answer
    x = 197,505,615.93

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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.