Home / 20,589,915.40-30,885,106.38-6,213,121.72

Finding the Fourth Proportional to 20,589,915.40, 30,885,106.38 and 6,213,121.72

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Solution

The fourth proportional to 20,589,915.40, 30,885,106.38 and 6,213,121.72 is: 9,319,752.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589,915.40 : 30,885,106.38 = 6,213,121.72 : x
  2. Step 2: Convert to fraction form
    20,589,915.40/30,885,106.38 = 6,213,121.72/x
  3. Step 3: Cross multiply
    20,589,915.40x = 30,885,106.38 × 6,213,121.72
  4. Step 4: Simplify right side
    20,589,915.40x = 191,892,925,274,088.56
  5. Step 5: Solve for x
    x = 191,892,925,274,088.56/20,589,915.40
  6. Step 6: Final answer
    x = 9,319,752.97

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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.