Home / 20,200,719.70-30,301,079.55-10,099,695.70

Finding the Fourth Proportional to 20,200,719.70, 30,301,079.55 and 10,099,695.70

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Solution

The fourth proportional to 20,200,719.70, 30,301,079.55 and 10,099,695.70 is: 15,149,543.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200,719.70 : 30,301,079.55 = 10,099,695.70 : x
  2. Step 2: Convert to fraction form
    20,200,719.70/30,301,079.55 = 10,099,695.70/x
  3. Step 3: Cross multiply
    20,200,719.70x = 30,301,079.55 × 10,099,695.70
  4. Step 4: Simplify right side
    20,200,719.70x = 306,031,682,836,492.94
  5. Step 5: Solve for x
    x = 306,031,682,836,492.94/20,200,719.70
  6. Step 6: Final answer
    x = 15,149,543.55

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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.