Home / 1,305,280,665.68-1,957,920,998.51-443,637,657.68

Finding the Fourth Proportional to 1,305,280,665.68, 1,957,920,998.51 and 443,637,657.68

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Solution

The fourth proportional to 1,305,280,665.68, 1,957,920,998.51 and 443,637,657.68 is: 665,456,486.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,280,665.68 : 1,957,920,998.51 = 443,637,657.68 : x
  2. Step 2: Convert to fraction form
    1,305,280,665.68/1,957,920,998.51 = 443,637,657.68/x
  3. Step 3: Cross multiply
    1,305,280,665.68x = 1,957,920,998.51 × 443,637,657.68
  4. Step 4: Simplify right side
    1,305,280,665.68x = 868,607,485,692,782,720
  5. Step 5: Solve for x
    x = 868,607,485,692,782,720/1,305,280,665.68
  6. Step 6: Final answer
    x = 665,456,486.51

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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.