Home / 20,786,811.60-31,142,892.60-17,800,827.60

Finding the Fourth Proportional to 20,786,811.60, 31,142,892.60 and 17,800,827.60

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Solution

The fourth proportional to 20,786,811.60, 31,142,892.60 and 17,800,827.60 is: 26,669,278.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,786,811.60 : 31,142,892.60 = 17,800,827.60 : x
  2. Step 2: Convert to fraction form
    20,786,811.60/31,142,892.60 = 17,800,827.60/x
  3. Step 3: Cross multiply
    20,786,811.60x = 31,142,892.60 × 17,800,827.60
  4. Step 4: Simplify right side
    20,786,811.60x = 554,369,262,137,915.81
  5. Step 5: Solve for x
    x = 554,369,262,137,915.81/20,786,811.60
  6. Step 6: Final answer
    x = 26,669,278.23

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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.