Home / 14,722,920-20,315,996.64-8,195,045.76

Finding the Fourth Proportional to 14,722,920, 20,315,996.64 and 8,195,045.76

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Solution

The fourth proportional to 14,722,920, 20,315,996.64 and 8,195,045.76 is: 11,308,254.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,722,920 : 20,315,996.64 = 8,195,045.76 : x
  2. Step 2: Convert to fraction form
    14,722,920/20,315,996.64 = 8,195,045.76/x
  3. Step 3: Cross multiply
    14,722,920x = 20,315,996.64 × 8,195,045.76
  4. Step 4: Simplify right side
    14,722,920x = 166,490,522,124,806.25
  5. Step 5: Solve for x
    x = 166,490,522,124,806.25/14,722,920
  6. Step 6: Final answer
    x = 11,308,254.21

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1.5x scale

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.