Home / 28,496,489-42,744,733.50-12,540,137

Finding the Fourth Proportional to 28,496,489, 42,744,733.50 and 12,540,137

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Solution

The fourth proportional to 28,496,489, 42,744,733.50 and 12,540,137 is: 18,810,205.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,496,489 : 42,744,733.50 = 12,540,137 : x
  2. Step 2: Convert to fraction form
    28,496,489/42,744,733.50 = 12,540,137/x
  3. Step 3: Cross multiply
    28,496,489x = 42,744,733.50 × 12,540,137
  4. Step 4: Simplify right side
    28,496,489x = 536,024,814,118,489.50
  5. Step 5: Solve for x
    x = 536,024,814,118,489.50/28,496,489
  6. Step 6: Final answer
    x = 18,810,205.50

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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.