Home / 245,280,713.82-338,429,190.24-139,425,821.28

Finding the Fourth Proportional to 245,280,713.82, 338,429,190.24 and 139,425,821.28

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Solution

The fourth proportional to 245,280,713.82, 338,429,190.24 and 139,425,821.28 is: 192,374,553.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,280,713.82 : 338,429,190.24 = 139,425,821.28 : x
  2. Step 2: Convert to fraction form
    245,280,713.82/338,429,190.24 = 139,425,821.28/x
  3. Step 3: Cross multiply
    245,280,713.82x = 338,429,190.24 × 139,425,821.28
  4. Step 4: Simplify right side
    245,280,713.82x = 47,185,767,794,337,360
  5. Step 5: Solve for x
    x = 47,185,767,794,337,360/245,280,713.82
  6. Step 6: Final answer
    x = 192,374,553.46

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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.