Home / 20,185,758.68-30,267,998-8,812,921.28

Finding the Fourth Proportional to 20,185,758.68, 30,267,998 and 8,812,921.28

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Solution

The fourth proportional to 20,185,758.68, 30,267,998 and 8,812,921.28 is: 13,214,736.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185,758.68 : 30,267,998 = 8,812,921.28 : x
  2. Step 2: Convert to fraction form
    20,185,758.68/30,267,998 = 8,812,921.28/x
  3. Step 3: Cross multiply
    20,185,758.68x = 30,267,998 × 8,812,921.28
  4. Step 4: Simplify right side
    20,185,758.68x = 266,749,483,677,197.41
  5. Step 5: Solve for x
    x = 266,749,483,677,197.41/20,185,758.68
  6. Step 6: Final answer
    x = 13,214,736.58

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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.