Home / 843,915,400.68-1,265,382,420.48-319,325,027.12

Finding the Fourth Proportional to 843,915,400.68, 1,265,382,420.48 and 319,325,027.12

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Solution

The fourth proportional to 843,915,400.68, 1,265,382,420.48 and 319,325,027.12 is: 478,801,874.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,915,400.68 : 1,265,382,420.48 = 319,325,027.12 : x
  2. Step 2: Convert to fraction form
    843,915,400.68/1,265,382,420.48 = 319,325,027.12/x
  3. Step 3: Cross multiply
    843,915,400.68x = 1,265,382,420.48 × 319,325,027.12
  4. Step 4: Simplify right side
    843,915,400.68x = 404,068,275,730,620,352
  5. Step 5: Solve for x
    x = 404,068,275,730,620,352/843,915,400.68
  6. Step 6: Final answer
    x = 478,801,874.46

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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.