Home / 8,974,221.12-12,384,255.87-5,489,303.49

Finding the Fourth Proportional to 8,974,221.12, 12,384,255.87 and 5,489,303.49

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Solution

The fourth proportional to 8,974,221.12, 12,384,255.87 and 5,489,303.49 is: 7,575,135.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974,221.12 : 12,384,255.87 = 5,489,303.49 : x
  2. Step 2: Convert to fraction form
    8,974,221.12/12,384,255.87 = 5,489,303.49/x
  3. Step 3: Cross multiply
    8,974,221.12x = 12,384,255.87 × 5,489,303.49
  4. Step 4: Simplify right side
    8,974,221.12x = 67,980,938,968,243.98
  5. Step 5: Solve for x
    x = 67,980,938,968,243.98/8,974,221.12
  6. Step 6: Final answer
    x = 7,575,135.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.