Home / 18,738,021.90-28,107,032.85-6,621,167.10

Finding the Fourth Proportional to 18,738,021.90, 28,107,032.85 and 6,621,167.10

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Solution

The fourth proportional to 18,738,021.90, 28,107,032.85 and 6,621,167.10 is: 9,931,750.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738,021.90 : 28,107,032.85 = 6,621,167.10 : x
  2. Step 2: Convert to fraction form
    18,738,021.90/28,107,032.85 = 6,621,167.10/x
  3. Step 3: Cross multiply
    18,738,021.90x = 28,107,032.85 × 6,621,167.10
  4. Step 4: Simplify right side
    18,738,021.90x = 186,101,361,185,039.25
  5. Step 5: Solve for x
    x = 186,101,361,185,039.25/18,738,021.90
  6. Step 6: Final answer
    x = 9,931,750.65

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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.