Home / 30,079,824.28-45,121,486.02-8,512,621.72

Finding the Fourth Proportional to 30,079,824.28, 45,121,486.02 and 8,512,621.72

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Solution

The fourth proportional to 30,079,824.28, 45,121,486.02 and 8,512,621.72 is: 12,769,427.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,079,824.28 : 45,121,486.02 = 8,512,621.72 : x
  2. Step 2: Convert to fraction form
    30,079,824.28/45,121,486.02 = 8,512,621.72/x
  3. Step 3: Cross multiply
    30,079,824.28x = 45,121,486.02 × 8,512,621.72
  4. Step 4: Simplify right side
    30,079,824.28x = 384,102,141,932,528.44
  5. Step 5: Solve for x
    x = 384,102,141,932,528.44/30,079,824.28
  6. Step 6: Final answer
    x = 12,769,427.72

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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.