Home / 1,188,348,821.10-1,782,728,691.39-401,408,204.76

Finding the Fourth Proportional to 1,188,348,821.10, 1,782,728,691.39 and 401,408,204.76

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Solution

The fourth proportional to 1,188,348,821.10, 1,782,728,691.39 and 401,408,204.76 is: 602,181,708.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,348,821.10 : 1,782,728,691.39 = 401,408,204.76 : x
  2. Step 2: Convert to fraction form
    1,188,348,821.10/1,782,728,691.39 = 401,408,204.76/x
  3. Step 3: Cross multiply
    1,188,348,821.10x = 1,782,728,691.39 × 401,408,204.76
  4. Step 4: Simplify right side
    1,188,348,821.10x = 715,601,923,585,004,032
  5. Step 5: Solve for x
    x = 715,601,923,585,004,032/1,188,348,821.10
  6. Step 6: Final answer
    x = 602,181,708.67

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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.