Home / 11,977,999.90-17,966,999.85-9,143,647.90

Finding the Fourth Proportional to 11,977,999.90, 17,966,999.85 and 9,143,647.90

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Solution

The fourth proportional to 11,977,999.90, 17,966,999.85 and 9,143,647.90 is: 13,715,471.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977,999.90 : 17,966,999.85 = 9,143,647.90 : x
  2. Step 2: Convert to fraction form
    11,977,999.90/17,966,999.85 = 9,143,647.90/x
  3. Step 3: Cross multiply
    11,977,999.90x = 17,966,999.85 × 9,143,647.90
  4. Step 4: Simplify right side
    11,977,999.90x = 164,283,920,447,752.84
  5. Step 5: Solve for x
    x = 164,283,920,447,752.84/11,977,999.90
  6. Step 6: Final answer
    x = 13,715,471.85

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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.