Home / 76,450,822.44-114,682,839.34-21,118,638.05

Finding the Fourth Proportional to 76,450,822.44, 114,682,839.34 and 21,118,638.05

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Solution

The fourth proportional to 76,450,822.44, 114,682,839.34 and 21,118,638.05 is: 31,679,781.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,450,822.44 : 114,682,839.34 = 21,118,638.05 : x
  2. Step 2: Convert to fraction form
    76,450,822.44/114,682,839.34 = 21,118,638.05/x
  3. Step 3: Cross multiply
    76,450,822.44x = 114,682,839.34 × 21,118,638.05
  4. Step 4: Simplify right side
    76,450,822.44x = 2,421,945,373,994,347
  5. Step 5: Solve for x
    x = 2,421,945,373,994,347/76,450,822.44
  6. Step 6: Final answer
    x = 31,679,781.81

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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.