Home / 439,023,538.42-605,679,664.53-253,348,676.98

Finding the Fourth Proportional to 439,023,538.42, 605,679,664.53 and 253,348,676.98

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Solution

The fourth proportional to 439,023,538.42, 605,679,664.53 and 253,348,676.98 is: 349,521,445.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,023,538.42 : 605,679,664.53 = 253,348,676.98 : x
  2. Step 2: Convert to fraction form
    439,023,538.42/605,679,664.53 = 253,348,676.98/x
  3. Step 3: Cross multiply
    439,023,538.42x = 605,679,664.53 × 253,348,676.98
  4. Step 4: Simplify right side
    439,023,538.42x = 153,448,141,682,365,728
  5. Step 5: Solve for x
    x = 153,448,141,682,365,728/439,023,538.42
  6. Step 6: Final answer
    x = 349,521,445.33

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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.