Home / 15,158,310.56-20,916,075.12-8,628,280.64

Finding the Fourth Proportional to 15,158,310.56, 20,916,075.12 and 8,628,280.64

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Solution

The fourth proportional to 15,158,310.56, 20,916,075.12 and 8,628,280.64 is: 11,905,664.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,158,310.56 : 20,916,075.12 = 8,628,280.64 : x
  2. Step 2: Convert to fraction form
    15,158,310.56/20,916,075.12 = 8,628,280.64/x
  3. Step 3: Cross multiply
    15,158,310.56x = 20,916,075.12 × 8,628,280.64
  4. Step 4: Simplify right side
    15,158,310.56x = 180,469,766,022,681.69
  5. Step 5: Solve for x
    x = 180,469,766,022,681.69/15,158,310.56
  6. Step 6: Final answer
    x = 11,905,664.90

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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.