Home / 28,496,490.75-42,744,736.13-12,540,138.75

Finding the Fourth Proportional to 28,496,490.75, 42,744,736.13 and 12,540,138.75

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Solution

The fourth proportional to 28,496,490.75, 42,744,736.13 and 12,540,138.75 is: 18,810,208.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,496,490.75 : 42,744,736.13 = 12,540,138.75 : x
  2. Step 2: Convert to fraction form
    28,496,490.75/42,744,736.13 = 12,540,138.75/x
  3. Step 3: Cross multiply
    28,496,490.75x = 42,744,736.13 × 12,540,138.75
  4. Step 4: Simplify right side
    28,496,490.75x = 536,024,921,839,637.38
  5. Step 5: Solve for x
    x = 536,024,921,839,637.38/28,496,490.75
  6. Step 6: Final answer
    x = 18,810,208.13

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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.