Home / 1,099,693,992.70-1,649,540,989.05-409,458,421.90

Finding the Fourth Proportional to 1,099,693,992.70, 1,649,540,989.05 and 409,458,421.90

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Solution

The fourth proportional to 1,099,693,992.70, 1,649,540,989.05 and 409,458,421.90 is: 614,187,632.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,693,992.70 : 1,649,540,989.05 = 409,458,421.90 : x
  2. Step 2: Convert to fraction form
    1,099,693,992.70/1,649,540,989.05 = 409,458,421.90/x
  3. Step 3: Cross multiply
    1,099,693,992.70x = 1,649,540,989.05 × 409,458,421.90
  4. Step 4: Simplify right side
    1,099,693,992.70x = 675,418,450,235,778,176
  5. Step 5: Solve for x
    x = 675,418,450,235,778,176/1,099,693,992.70
  6. Step 6: Final answer
    x = 614,187,632.85

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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.