Home / 387,650,945.72-535,003,531.76-220,412,265.27

Finding the Fourth Proportional to 387,650,945.72, 535,003,531.76 and 220,412,265.27

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Solution

The fourth proportional to 387,650,945.72, 535,003,531.76 and 220,412,265.27 is: 304,194,641.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,650,945.72 : 535,003,531.76 = 220,412,265.27 : x
  2. Step 2: Convert to fraction form
    387,650,945.72/535,003,531.76 = 220,412,265.27/x
  3. Step 3: Cross multiply
    387,650,945.72x = 535,003,531.76 × 220,412,265.27
  4. Step 4: Simplify right side
    387,650,945.72x = 117,921,340,361,569,936
  5. Step 5: Solve for x
    x = 117,921,340,361,569,936/387,650,945.72
  6. Step 6: Final answer
    x = 304,194,641.25

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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.