Home / 22,147,638.10-33,221,457.15-20,803,945.30

Finding the Fourth Proportional to 22,147,638.10, 33,221,457.15 and 20,803,945.30

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Solution

The fourth proportional to 22,147,638.10, 33,221,457.15 and 20,803,945.30 is: 31,205,917.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,147,638.10 : 33,221,457.15 = 20,803,945.30 : x
  2. Step 2: Convert to fraction form
    22,147,638.10/33,221,457.15 = 20,803,945.30/x
  3. Step 3: Cross multiply
    22,147,638.10x = 33,221,457.15 × 20,803,945.30
  4. Step 4: Simplify right side
    22,147,638.10x = 691,137,377,334,893.88
  5. Step 5: Solve for x
    x = 691,137,377,334,893.88/22,147,638.10
  6. Step 6: Final answer
    x = 31,205,917.95

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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.