Home / 20,801,071.60-31,164,282.60-17,815,087.60

Finding the Fourth Proportional to 20,801,071.60, 31,164,282.60 and 17,815,087.60

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Solution

The fourth proportional to 20,801,071.60, 31,164,282.60 and 17,815,087.60 is: 26,690,664.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801,071.60 : 31,164,282.60 = 17,815,087.60 : x
  2. Step 2: Convert to fraction form
    20,801,071.60/31,164,282.60 = 17,815,087.60/x
  3. Step 3: Cross multiply
    20,801,071.60x = 31,164,282.60 × 17,815,087.60
  4. Step 4: Simplify right side
    20,801,071.60x = 555,194,424,510,155.81
  5. Step 5: Solve for x
    x = 555,194,424,510,155.81/20,801,071.60
  6. Step 6: Final answer
    x = 26,690,664.56

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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.