Home / 20,956,996.42-28,920,606.33-11,789,636.74

Finding the Fourth Proportional to 20,956,996.42, 28,920,606.33 and 11,789,636.74

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Solution

The fourth proportional to 20,956,996.42, 28,920,606.33 and 11,789,636.74 is: 16,269,671.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,996.42 : 28,920,606.33 = 11,789,636.74 : x
  2. Step 2: Convert to fraction form
    20,956,996.42/28,920,606.33 = 11,789,636.74/x
  3. Step 3: Cross multiply
    20,956,996.42x = 28,920,606.33 × 11,789,636.74
  4. Step 4: Simplify right side
    20,956,996.42x = 340,963,442,931,244.56
  5. Step 5: Solve for x
    x = 340,963,442,931,244.56/20,956,996.42
  6. Step 6: Final answer
    x = 16,269,671.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.