Home / 379,117,546.80-568,676,320.20-215,292,001.20

Finding the Fourth Proportional to 379,117,546.80, 568,676,320.20 and 215,292,001.20

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Solution

The fourth proportional to 379,117,546.80, 568,676,320.20 and 215,292,001.20 is: 322,938,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,117,546.80 : 568,676,320.20 = 215,292,001.20 : x
  2. Step 2: Convert to fraction form
    379,117,546.80/568,676,320.20 = 215,292,001.20/x
  3. Step 3: Cross multiply
    379,117,546.80x = 568,676,320.20 × 215,292,001.20
  4. Step 4: Simplify right side
    379,117,546.80x = 122,431,463,010,909,984
  5. Step 5: Solve for x
    x = 122,431,463,010,909,984/379,117,546.80
  6. Step 6: Final answer
    x = 322,938,001.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.