Home / 45,639,956.64-68,482,078.38-20,077,644.60

Finding the Fourth Proportional to 45,639,956.64, 68,482,078.38 and 20,077,644.60

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Solution

The fourth proportional to 45,639,956.64, 68,482,078.38 and 20,077,644.60 is: 30,126,208.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,639,956.64 : 68,482,078.38 = 20,077,644.60 : x
  2. Step 2: Convert to fraction form
    45,639,956.64/68,482,078.38 = 20,077,644.60/x
  3. Step 3: Cross multiply
    45,639,956.64x = 68,482,078.38 × 20,077,644.60
  4. Step 4: Simplify right side
    45,639,956.64x = 1,374,958,831,182,983.75
  5. Step 5: Solve for x
    x = 1,374,958,831,182,983.75/45,639,956.64
  6. Step 6: Final answer
    x = 30,126,208.09

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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.