Home / 10,219,563.90-15,310,683.45-8,315,999.10

Finding the Fourth Proportional to 10,219,563.90, 15,310,683.45 and 8,315,999.10

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Solution

The fourth proportional to 10,219,563.90, 15,310,683.45 and 8,315,999.10 is: 12,458,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219,563.90 : 15,310,683.45 = 8,315,999.10 : x
  2. Step 2: Convert to fraction form
    10,219,563.90/15,310,683.45 = 8,315,999.10/x
  3. Step 3: Cross multiply
    10,219,563.90x = 15,310,683.45 × 8,315,999.10
  4. Step 4: Simplify right side
    10,219,563.90x = 127,323,629,790,584.89
  5. Step 5: Solve for x
    x = 127,323,629,790,584.89/10,219,563.90
  6. Step 6: Final answer
    x = 12,458,812.43

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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.