Home / 486,612,260.25-671,511,045.77-285,665,903.43

Finding the Fourth Proportional to 486,612,260.25, 671,511,045.77 and 285,665,903.43

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Solution

The fourth proportional to 486,612,260.25, 671,511,045.77 and 285,665,903.43 is: 394,210,802.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,612,260.25 : 671,511,045.77 = 285,665,903.43 : x
  2. Step 2: Convert to fraction form
    486,612,260.25/671,511,045.77 = 285,665,903.43/x
  3. Step 3: Cross multiply
    486,612,260.25x = 671,511,045.77 × 285,665,903.43
  4. Step 4: Simplify right side
    486,612,260.25x = 191,827,809,551,682,816
  5. Step 5: Solve for x
    x = 191,827,809,551,682,816/486,612,260.25
  6. Step 6: Final answer
    x = 394,210,802.36

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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.