Home / 13,790,869.10-20,654,810.85-8,122,165.10

Finding the Fourth Proportional to 13,790,869.10, 20,654,810.85 and 8,122,165.10

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Solution

The fourth proportional to 13,790,869.10, 20,654,810.85 and 8,122,165.10 is: 12,164,699.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790,869.10 : 20,654,810.85 = 8,122,165.10 : x
  2. Step 2: Convert to fraction form
    13,790,869.10/20,654,810.85 = 8,122,165.10/x
  3. Step 3: Cross multiply
    13,790,869.10x = 20,654,810.85 × 8,122,165.10
  4. Step 4: Simplify right side
    13,790,869.10x = 167,761,783,832,971.34
  5. Step 5: Solve for x
    x = 167,761,783,832,971.34/13,790,869.10
  6. Step 6: Final answer
    x = 12,164,699.89

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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.