Home / 20,113,712.10-30,170,568.15-18,098,172.90

Finding the Fourth Proportional to 20,113,712.10, 30,170,568.15 and 18,098,172.90

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Solution

The fourth proportional to 20,113,712.10, 30,170,568.15 and 18,098,172.90 is: 27,147,259.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113,712.10 : 30,170,568.15 = 18,098,172.90 : x
  2. Step 2: Convert to fraction form
    20,113,712.10/30,170,568.15 = 18,098,172.90/x
  3. Step 3: Cross multiply
    20,113,712.10x = 30,170,568.15 × 18,098,172.90
  4. Step 4: Simplify right side
    20,113,712.10x = 546,032,158,869,933.06
  5. Step 5: Solve for x
    x = 546,032,158,869,933.06/20,113,712.10
  6. Step 6: Final answer
    x = 27,147,259.35

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1.5x scale

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.