Home / 20,733,121.60-31,113,679.20-13,527,102.40

Finding the Fourth Proportional to 20,733,121.60, 31,113,679.20 and 13,527,102.40

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Solution

The fourth proportional to 20,733,121.60, 31,113,679.20 and 13,527,102.40 is: 20,299,785.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733,121.60 : 31,113,679.20 = 13,527,102.40 : x
  2. Step 2: Convert to fraction form
    20,733,121.60/31,113,679.20 = 13,527,102.40/x
  3. Step 3: Cross multiply
    20,733,121.60x = 31,113,679.20 × 13,527,102.40
  4. Step 4: Simplify right side
    20,733,121.60x = 420,877,924,579,150.06
  5. Step 5: Solve for x
    x = 420,877,924,579,150.06/20,733,121.60
  6. Step 6: Final answer
    x = 20,299,785.66

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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.