Home / 20,738,052.40-31,107,078.60-18,974,455.60

Finding the Fourth Proportional to 20,738,052.40, 31,107,078.60 and 18,974,455.60

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Solution

The fourth proportional to 20,738,052.40, 31,107,078.60 and 18,974,455.60 is: 28,461,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738,052.40 : 31,107,078.60 = 18,974,455.60 : x
  2. Step 2: Convert to fraction form
    20,738,052.40/31,107,078.60 = 18,974,455.60/x
  3. Step 3: Cross multiply
    20,738,052.40x = 31,107,078.60 × 18,974,455.60
  4. Step 4: Simplify right side
    20,738,052.40x = 590,239,881,741,410.25
  5. Step 5: Solve for x
    x = 590,239,881,741,410.25/20,738,052.40
  6. Step 6: Final answer
    x = 28,461,683.40

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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.