Home / 1,123,559,998.60-1,685,339,997.90-396,622,193.80

Finding the Fourth Proportional to 1,123,559,998.60, 1,685,339,997.90 and 396,622,193.80

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Solution

The fourth proportional to 1,123,559,998.60, 1,685,339,997.90 and 396,622,193.80 is: 594,933,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,559,998.60 : 1,685,339,997.90 = 396,622,193.80 : x
  2. Step 2: Convert to fraction form
    1,123,559,998.60/1,685,339,997.90 = 396,622,193.80/x
  3. Step 3: Cross multiply
    1,123,559,998.60x = 1,685,339,997.90 × 396,622,193.80
  4. Step 4: Simplify right side
    1,123,559,998.60x = 668,443,247,265,985,408
  5. Step 5: Solve for x
    x = 668,443,247,265,985,408/1,123,559,998.60
  6. Step 6: Final answer
    x = 594,933,290.70

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Double scale
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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.