Home / 746,899,028.40-1,120,348,542.60-379,567,009.20

Finding the Fourth Proportional to 746,899,028.40, 1,120,348,542.60 and 379,567,009.20

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Solution

The fourth proportional to 746,899,028.40, 1,120,348,542.60 and 379,567,009.20 is: 569,350,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,899,028.40 : 1,120,348,542.60 = 379,567,009.20 : x
  2. Step 2: Convert to fraction form
    746,899,028.40/1,120,348,542.60 = 379,567,009.20/x
  3. Step 3: Cross multiply
    746,899,028.40x = 1,120,348,542.60 × 379,567,009.20
  4. Step 4: Simplify right side
    746,899,028.40x = 425,247,345,576,260,736
  5. Step 5: Solve for x
    x = 425,247,345,576,260,736/746,899,028.40
  6. Step 6: Final answer
    x = 569,350,513.80

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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.