Home / 11,977,991.10-17,966,986.65-8,151,615.90

Finding the Fourth Proportional to 11,977,991.10, 17,966,986.65 and 8,151,615.90

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Solution

The fourth proportional to 11,977,991.10, 17,966,986.65 and 8,151,615.90 is: 12,227,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977,991.10 : 17,966,986.65 = 8,151,615.90 : x
  2. Step 2: Convert to fraction form
    11,977,991.10/17,966,986.65 = 8,151,615.90/x
  3. Step 3: Cross multiply
    11,977,991.10x = 17,966,986.65 × 8,151,615.90
  4. Step 4: Simplify right side
    11,977,991.10x = 146,459,974,051,227.72
  5. Step 5: Solve for x
    x = 146,459,974,051,227.72/11,977,991.10
  6. Step 6: Final answer
    x = 12,227,423.85

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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.