Home / 511,155,217.80-766,732,822.27-122,978,043.63

Finding the Fourth Proportional to 511,155,217.80, 766,732,822.27 and 122,978,043.63

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Solution

The fourth proportional to 511,155,217.80, 766,732,822.27 and 122,978,043.63 is: 184,467,064.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,155,217.80 : 766,732,822.27 = 122,978,043.63 : x
  2. Step 2: Convert to fraction form
    511,155,217.80/766,732,822.27 = 122,978,043.63/x
  3. Step 3: Cross multiply
    511,155,217.80x = 766,732,822.27 × 122,978,043.63
  4. Step 4: Simplify right side
    511,155,217.80x = 94,291,302,469,365,648
  5. Step 5: Solve for x
    x = 94,291,302,469,365,648/511,155,217.80
  6. Step 6: Final answer
    x = 184,467,064.38

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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.