Home / 20,971,211.40-31,456,817.10-14,252,747.40

Finding the Fourth Proportional to 20,971,211.40, 31,456,817.10 and 14,252,747.40

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Solution

The fourth proportional to 20,971,211.40, 31,456,817.10 and 14,252,747.40 is: 21,379,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,971,211.40 : 31,456,817.10 = 14,252,747.40 : x
  2. Step 2: Convert to fraction form
    20,971,211.40/31,456,817.10 = 14,252,747.40/x
  3. Step 3: Cross multiply
    20,971,211.40x = 31,456,817.10 × 14,252,747.40
  4. Step 4: Simplify right side
    20,971,211.40x = 448,346,068,134,300.56
  5. Step 5: Solve for x
    x = 448,346,068,134,300.56/20,971,211.40
  6. Step 6: Final answer
    x = 21,379,121.10

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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.