Home / 569,519,496.82-785,967,421.77-318,608,920.72

Finding the Fourth Proportional to 569,519,496.82, 785,967,421.77 and 318,608,920.72

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Solution

The fourth proportional to 569,519,496.82, 785,967,421.77 and 318,608,920.72 is: 439,697,382.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,519,496.82 : 785,967,421.77 = 318,608,920.72 : x
  2. Step 2: Convert to fraction form
    569,519,496.82/785,967,421.77 = 318,608,920.72/x
  3. Step 3: Cross multiply
    569,519,496.82x = 785,967,421.77 × 318,608,920.72
  4. Step 4: Simplify right side
    569,519,496.82x = 250,416,231,971,220,736
  5. Step 5: Solve for x
    x = 250,416,231,971,220,736/569,519,496.82
  6. Step 6: Final answer
    x = 439,697,382.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.