Home / 20,342,191.78-28,072,730.85-11,049,758.92

Finding the Fourth Proportional to 20,342,191.78, 28,072,730.85 and 11,049,758.92

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Solution

The fourth proportional to 20,342,191.78, 28,072,730.85 and 11,049,758.92 is: 15,248,942.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,342,191.78 : 28,072,730.85 = 11,049,758.92 : x
  2. Step 2: Convert to fraction form
    20,342,191.78/28,072,730.85 = 11,049,758.92/x
  3. Step 3: Cross multiply
    20,342,191.78x = 28,072,730.85 × 11,049,758.92
  4. Step 4: Simplify right side
    20,342,191.78x = 310,196,908,118,546.69
  5. Step 5: Solve for x
    x = 310,196,908,118,546.69/20,342,191.78
  6. Step 6: Final answer
    x = 15,248,942.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.