Home / 1,269,289,916.40-1,903,934,874.60-724,086,562.80

Finding the Fourth Proportional to 1,269,289,916.40, 1,903,934,874.60 and 724,086,562.80

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Solution

The fourth proportional to 1,269,289,916.40, 1,903,934,874.60 and 724,086,562.80 is: 1,086,129,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,289,916.40 : 1,903,934,874.60 = 724,086,562.80 : x
  2. Step 2: Convert to fraction form
    1,269,289,916.40/1,903,934,874.60 = 724,086,562.80/x
  3. Step 3: Cross multiply
    1,269,289,916.40x = 1,903,934,874.60 × 724,086,562.80
  4. Step 4: Simplify right side
    1,269,289,916.40x = 1,378,613,659,144,162,816
  5. Step 5: Solve for x
    x = 1,378,613,659,144,162,816/1,269,289,916.40
  6. Step 6: Final answer
    x = 1,086,129,844.20

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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.