Home / 121,935,355.43-168,270,874.00-66,180,777.10

Finding the Fourth Proportional to 121,935,355.43, 168,270,874.00 and 66,180,777.10

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Solution

The fourth proportional to 121,935,355.43, 168,270,874.00 and 66,180,777.10 is: 91,329,517.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,935,355.43 : 168,270,874.00 = 66,180,777.10 : x
  2. Step 2: Convert to fraction form
    121,935,355.43/168,270,874.00 = 66,180,777.10/x
  3. Step 3: Cross multiply
    121,935,355.43x = 168,270,874.00 × 66,180,777.10
  4. Step 4: Simplify right side
    121,935,355.43x = 11,136,297,204,030,056
  5. Step 5: Solve for x
    x = 11,136,297,204,030,056/121,935,355.43
  6. Step 6: Final answer
    x = 91,329,517.72

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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.