Home / 13,428,682.72-20,148,978.24-7,037,415.52

Finding the Fourth Proportional to 13,428,682.72, 20,148,978.24 and 7,037,415.52

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Solution

The fourth proportional to 13,428,682.72, 20,148,978.24 and 7,037,415.52 is: 10,559,243.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428,682.72 : 20,148,978.24 = 7,037,415.52 : x
  2. Step 2: Convert to fraction form
    13,428,682.72/20,148,978.24 = 7,037,415.52/x
  3. Step 3: Cross multiply
    13,428,682.72x = 20,148,978.24 × 7,037,415.52
  4. Step 4: Simplify right side
    13,428,682.72x = 141,796,732,178,318.25
  5. Step 5: Solve for x
    x = 141,796,732,178,318.25/13,428,682.72
  6. Step 6: Final answer
    x = 10,559,243.61

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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.