Home / 8,420,549.12-12,628,918.72-3,867,220.48

Finding the Fourth Proportional to 8,420,549.12, 12,628,918.72 and 3,867,220.48

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Solution

The fourth proportional to 8,420,549.12, 12,628,918.72 and 3,867,220.48 is: 5,799,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420,549.12 : 12,628,918.72 = 3,867,220.48 : x
  2. Step 2: Convert to fraction form
    8,420,549.12/12,628,918.72 = 3,867,220.48/x
  3. Step 3: Cross multiply
    8,420,549.12x = 12,628,918.72 × 3,867,220.48
  4. Step 4: Simplify right side
    8,420,549.12x = 48,838,813,114,239.39
  5. Step 5: Solve for x
    x = 48,838,813,114,239.39/8,420,549.12
  6. Step 6: Final answer
    x = 5,799,955.85

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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.