Home / 28,758,688.88-43,138,919.05-12,576,310.43

Finding the Fourth Proportional to 28,758,688.88, 43,138,919.05 and 12,576,310.43

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Solution

The fourth proportional to 28,758,688.88, 43,138,919.05 and 12,576,310.43 is: 18,864,852.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758,688.88 : 43,138,919.05 = 12,576,310.43 : x
  2. Step 2: Convert to fraction form
    28,758,688.88/43,138,919.05 = 12,576,310.43/x
  3. Step 3: Cross multiply
    28,758,688.88x = 43,138,919.05 × 12,576,310.43
  4. Step 4: Simplify right side
    28,758,688.88x = 542,528,437,340,305.38
  5. Step 5: Solve for x
    x = 542,528,437,340,305.38/28,758,688.88
  6. Step 6: Final answer
    x = 18,864,852.97

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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.