Home / 18,930,655.68-28,384,632.99-9,196,099.35

Finding the Fourth Proportional to 18,930,655.68, 28,384,632.99 and 9,196,099.35

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Solution

The fourth proportional to 18,930,655.68, 28,384,632.99 and 9,196,099.35 is: 13,788,635.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930,655.68 : 28,384,632.99 = 9,196,099.35 : x
  2. Step 2: Convert to fraction form
    18,930,655.68/28,384,632.99 = 9,196,099.35/x
  3. Step 3: Cross multiply
    18,930,655.68x = 28,384,632.99 × 9,196,099.35
  4. Step 4: Simplify right side
    18,930,655.68x = 261,027,904,989,327.53
  5. Step 5: Solve for x
    x = 261,027,904,989,327.53/18,930,655.68
  6. Step 6: Final answer
    x = 13,788,635.19

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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.