Home / 18,669,215.10-28,003,822.65-10,984,971.90

Finding the Fourth Proportional to 18,669,215.10, 28,003,822.65 and 10,984,971.90

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Solution

The fourth proportional to 18,669,215.10, 28,003,822.65 and 10,984,971.90 is: 16,477,457.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669,215.10 : 28,003,822.65 = 10,984,971.90 : x
  2. Step 2: Convert to fraction form
    18,669,215.10/28,003,822.65 = 10,984,971.90/x
  3. Step 3: Cross multiply
    18,669,215.10x = 28,003,822.65 × 10,984,971.90
  4. Step 4: Simplify right side
    18,669,215.10x = 307,621,204,902,833.50
  5. Step 5: Solve for x
    x = 307,621,204,902,833.50/18,669,215.10
  6. Step 6: Final answer
    x = 16,477,457.85

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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.