Home / 320,983,920.71-442,950,316.59-188,833,427.54

Finding the Fourth Proportional to 320,983,920.71, 442,950,316.59 and 188,833,427.54

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Solution

The fourth proportional to 320,983,920.71, 442,950,316.59 and 188,833,427.54 is: 260,585,721.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,983,920.71 : 442,950,316.59 = 188,833,427.54 : x
  2. Step 2: Convert to fraction form
    320,983,920.71/442,950,316.59 = 188,833,427.54/x
  3. Step 3: Cross multiply
    320,983,920.71x = 442,950,316.59 × 188,833,427.54
  4. Step 4: Simplify right side
    320,983,920.71x = 83,643,826,511,617,824
  5. Step 5: Solve for x
    x = 83,643,826,511,617,824/320,983,920.71
  6. Step 6: Final answer
    x = 260,585,721.32

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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.