Home / 1,123,412,499.60-1,685,123,998.20-396,401,211.60

Finding the Fourth Proportional to 1,123,412,499.60, 1,685,123,998.20 and 396,401,211.60

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Solution

The fourth proportional to 1,123,412,499.60, 1,685,123,998.20 and 396,401,211.60 is: 594,603,669.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,412,499.60 : 1,685,123,998.20 = 396,401,211.60 : x
  2. Step 2: Convert to fraction form
    1,123,412,499.60/1,685,123,998.20 = 396,401,211.60/x
  3. Step 3: Cross multiply
    1,123,412,499.60x = 1,685,123,998.20 × 396,401,211.60
  4. Step 4: Simplify right side
    1,123,412,499.60x = 667,985,194,582,716,288
  5. Step 5: Solve for x
    x = 667,985,194,582,716,288/1,123,412,499.60
  6. Step 6: Final answer
    x = 594,603,669.46

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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.