Home / 20,800,881.60-31,163,997.60-17,814,897.60

Finding the Fourth Proportional to 20,800,881.60, 31,163,997.60 and 17,814,897.60

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Solution

The fourth proportional to 20,800,881.60, 31,163,997.60 and 17,814,897.60 is: 26,690,379.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800,881.60 : 31,163,997.60 = 17,814,897.60 : x
  2. Step 2: Convert to fraction form
    20,800,881.60/31,163,997.60 = 17,814,897.60/x
  3. Step 3: Cross multiply
    20,800,881.60x = 31,163,997.60 × 17,814,897.60
  4. Step 4: Simplify right side
    20,800,881.60x = 555,183,426,050,645.81
  5. Step 5: Solve for x
    x = 555,183,426,050,645.81/20,800,881.60
  6. Step 6: Final answer
    x = 26,690,379.61

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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.