Home / 45,639,957.64-68,482,079.88-20,077,645.60

Finding the Fourth Proportional to 45,639,957.64, 68,482,079.88 and 20,077,645.60

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Solution

The fourth proportional to 45,639,957.64, 68,482,079.88 and 20,077,645.60 is: 30,126,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,639,957.64 : 68,482,079.88 = 20,077,645.60 : x
  2. Step 2: Convert to fraction form
    45,639,957.64/68,482,079.88 = 20,077,645.60/x
  3. Step 3: Cross multiply
    45,639,957.64x = 68,482,079.88 × 20,077,645.60
  4. Step 4: Simplify right side
    45,639,957.64x = 1,374,958,929,781,530.50
  5. Step 5: Solve for x
    x = 1,374,958,929,781,530.50/45,639,957.64
  6. Step 6: Final answer
    x = 30,126,209.60

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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.