Home / 492,476,398.73-679,612,391.39-272,461,399.37

Finding the Fourth Proportional to 492,476,398.73, 679,612,391.39 and 272,461,399.37

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Solution

The fourth proportional to 492,476,398.73, 679,612,391.39 and 272,461,399.37 is: 375,993,943.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,476,398.73 : 679,612,391.39 = 272,461,399.37 : x
  2. Step 2: Convert to fraction form
    492,476,398.73/679,612,391.39 = 272,461,399.37/x
  3. Step 3: Cross multiply
    492,476,398.73x = 679,612,391.39 × 272,461,399.37
  4. Step 4: Simplify right side
    492,476,398.73x = 185,168,143,184,594,656
  5. Step 5: Solve for x
    x = 185,168,143,184,594,656/492,476,398.73
  6. Step 6: Final answer
    x = 375,993,943.39

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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.