Home / 172,631,215.80-258,521,670.90-81,648,516.60

Finding the Fourth Proportional to 172,631,215.80, 258,521,670.90 and 81,648,516.60

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Solution

The fourth proportional to 172,631,215.80, 258,521,670.90 and 81,648,516.60 is: 122,271,692.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,631,215.80 : 258,521,670.90 = 81,648,516.60 : x
  2. Step 2: Convert to fraction form
    172,631,215.80/258,521,670.90 = 81,648,516.60/x
  3. Step 3: Cross multiply
    172,631,215.80x = 258,521,670.90 × 81,648,516.60
  4. Step 4: Simplify right side
    172,631,215.80x = 21,107,910,937,938,384
  5. Step 5: Solve for x
    x = 21,107,910,937,938,384/172,631,215.80
  6. Step 6: Final answer
    x = 122,271,692.52

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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.