Home / 20,857,274.29-31,279,520.94-14,421,705.49

Finding the Fourth Proportional to 20,857,274.29, 31,279,520.94 and 14,421,705.49

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Solution

The fourth proportional to 20,857,274.29, 31,279,520.94 and 14,421,705.49 is: 21,628,139.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857,274.29 : 31,279,520.94 = 14,421,705.49 : x
  2. Step 2: Convert to fraction form
    20,857,274.29/31,279,520.94 = 14,421,705.49/x
  3. Step 3: Cross multiply
    20,857,274.29x = 31,279,520.94 × 14,421,705.49
  4. Step 4: Simplify right side
    20,857,274.29x = 451,104,038,864,968
  5. Step 5: Solve for x
    x = 451,104,038,864,968/20,857,274.29
  6. Step 6: Final answer
    x = 21,628,139.54

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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.