Home / 1,123,412,500.60-1,685,123,999.70-396,401,212.60

Finding the Fourth Proportional to 1,123,412,500.60, 1,685,123,999.70 and 396,401,212.60

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Solution

The fourth proportional to 1,123,412,500.60, 1,685,123,999.70 and 396,401,212.60 is: 594,603,670.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,412,500.60 : 1,685,123,999.70 = 396,401,212.60 : x
  2. Step 2: Convert to fraction form
    1,123,412,500.60/1,685,123,999.70 = 396,401,212.60/x
  3. Step 3: Cross multiply
    1,123,412,500.60x = 1,685,123,999.70 × 396,401,212.60
  4. Step 4: Simplify right side
    1,123,412,500.60x = 667,985,196,862,442,112
  5. Step 5: Solve for x
    x = 667,985,196,862,442,112/1,123,412,500.60
  6. Step 6: Final answer
    x = 594,603,670.96

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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.