Home / 13,728,028.64-20,597,466.72-5,210,625.92

Finding the Fourth Proportional to 13,728,028.64, 20,597,466.72 and 5,210,625.92

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Solution

The fourth proportional to 13,728,028.64, 20,597,466.72 and 5,210,625.92 is: 7,817,997.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728,028.64 : 20,597,466.72 = 5,210,625.92 : x
  2. Step 2: Convert to fraction form
    13,728,028.64/20,597,466.72 = 5,210,625.92/x
  3. Step 3: Cross multiply
    13,728,028.64x = 20,597,466.72 × 5,210,625.92
  4. Step 4: Simplify right side
    13,728,028.64x = 107,325,693,977,569.38
  5. Step 5: Solve for x
    x = 107,325,693,977,569.38/13,728,028.64
  6. Step 6: Final answer
    x = 7,817,997.53

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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.