Home / 12,361,820.89-17,058,989.58-6,855,181.72

Finding the Fourth Proportional to 12,361,820.89, 17,058,989.58 and 6,855,181.72

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Solution

The fourth proportional to 12,361,820.89, 17,058,989.58 and 6,855,181.72 is: 9,459,971.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,361,820.89 : 17,058,989.58 = 6,855,181.72 : x
  2. Step 2: Convert to fraction form
    12,361,820.89/17,058,989.58 = 6,855,181.72/x
  3. Step 3: Cross multiply
    12,361,820.89x = 17,058,989.58 × 6,855,181.72
  4. Step 4: Simplify right side
    12,361,820.89x = 116,942,473,530,486.45
  5. Step 5: Solve for x
    x = 116,942,473,530,486.45/12,361,820.89
  6. Step 6: Final answer
    x = 9,459,971.52

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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.