Home / 20,643,989.16-30,954,028.14-6,992,560.20

Finding the Fourth Proportional to 20,643,989.16, 30,954,028.14 and 6,992,560.20

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Solution

The fourth proportional to 20,643,989.16, 30,954,028.14 and 6,992,560.20 is: 10,484,790.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643,989.16 : 30,954,028.14 = 6,992,560.20 : x
  2. Step 2: Convert to fraction form
    20,643,989.16/30,954,028.14 = 6,992,560.20/x
  3. Step 3: Cross multiply
    20,643,989.16x = 30,954,028.14 × 6,992,560.20
  4. Step 4: Simplify right side
    20,643,989.16x = 216,447,905,201,444.03
  5. Step 5: Solve for x
    x = 216,447,905,201,444.03/20,643,989.16
  6. Step 6: Final answer
    x = 10,484,790.68

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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.