Home / 28,771,137.90-43,156,731.42-8,020,753.38

Finding the Fourth Proportional to 28,771,137.90, 43,156,731.42 and 8,020,753.38

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Solution

The fourth proportional to 28,771,137.90, 43,156,731.42 and 8,020,753.38 is: 12,031,136.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,771,137.90 : 43,156,731.42 = 8,020,753.38 : x
  2. Step 2: Convert to fraction form
    28,771,137.90/43,156,731.42 = 8,020,753.38/x
  3. Step 3: Cross multiply
    28,771,137.90x = 43,156,731.42 × 8,020,753.38
  4. Step 4: Simplify right side
    28,771,137.90x = 346,149,499,406,717.19
  5. Step 5: Solve for x
    x = 346,149,499,406,717.19/28,771,137.90
  6. Step 6: Final answer
    x = 12,031,136.92

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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.