Home / 28,895,870.34-43,339,191.64-8,420,800.57

Finding the Fourth Proportional to 28,895,870.34, 43,339,191.64 and 8,420,800.57

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Solution

The fourth proportional to 28,895,870.34, 43,339,191.64 and 8,420,800.57 is: 12,629,856.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,895,870.34 : 43,339,191.64 = 8,420,800.57 : x
  2. Step 2: Convert to fraction form
    28,895,870.34/43,339,191.64 = 8,420,800.57/x
  3. Step 3: Cross multiply
    28,895,870.34x = 43,339,191.64 × 8,420,800.57
  4. Step 4: Simplify right side
    28,895,870.34x = 364,950,689,656,046.75
  5. Step 5: Solve for x
    x = 364,950,689,656,046.75/28,895,870.34
  6. Step 6: Final answer
    x = 12,629,856.28

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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.