Home / 18,143,999.70-27,215,999.55-10,977,638.10

Finding the Fourth Proportional to 18,143,999.70, 27,215,999.55 and 10,977,638.10

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Solution

The fourth proportional to 18,143,999.70, 27,215,999.55 and 10,977,638.10 is: 16,466,457.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143,999.70 : 27,215,999.55 = 10,977,638.10 : x
  2. Step 2: Convert to fraction form
    18,143,999.70/27,215,999.55 = 10,977,638.10/x
  3. Step 3: Cross multiply
    18,143,999.70x = 27,215,999.55 × 10,977,638.10
  4. Step 4: Simplify right side
    18,143,999.70x = 298,767,393,589,662.88
  5. Step 5: Solve for x
    x = 298,767,393,589,662.88/18,143,999.70
  6. Step 6: Final answer
    x = 16,466,457.15

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1.5x scale

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.