Home / 28,771,138.40-43,156,732.17-8,020,753.88

Finding the Fourth Proportional to 28,771,138.40, 43,156,732.17 and 8,020,753.88

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Solution

The fourth proportional to 28,771,138.40, 43,156,732.17 and 8,020,753.88 is: 12,031,137.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,771,138.40 : 43,156,732.17 = 8,020,753.88 : x
  2. Step 2: Convert to fraction form
    28,771,138.40/43,156,732.17 = 8,020,753.88/x
  3. Step 3: Cross multiply
    28,771,138.40x = 43,156,732.17 × 8,020,753.88
  4. Step 4: Simplify right side
    28,771,138.40x = 346,149,527,000,648.31
  5. Step 5: Solve for x
    x = 346,149,527,000,648.31/28,771,138.40
  6. Step 6: Final answer
    x = 12,031,137.67

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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.