Home / 515,924,529.44-773,121,518.51-378,940,297.28

Finding the Fourth Proportional to 515,924,529.44, 773,121,518.51 and 378,940,297.28

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Solution

The fourth proportional to 515,924,529.44, 773,121,518.51 and 378,940,297.28 is: 567,848,360.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,924,529.44 : 773,121,518.51 = 378,940,297.28 : x
  2. Step 2: Convert to fraction form
    515,924,529.44/773,121,518.51 = 378,940,297.28/x
  3. Step 3: Cross multiply
    515,924,529.44x = 773,121,518.51 × 378,940,297.28
  4. Step 4: Simplify right side
    515,924,529.44x = 292,966,898,051,984,064
  5. Step 5: Solve for x
    x = 292,966,898,051,984,064/515,924,529.44
  6. Step 6: Final answer
    x = 567,848,360.25

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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.