Home / 15,621,223.50-21,555,647.29-8,651,718.45

Finding the Fourth Proportional to 15,621,223.50, 21,555,647.29 and 8,651,718.45

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Solution

The fourth proportional to 15,621,223.50, 21,555,647.29 and 8,651,718.45 is: 11,938,462.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621,223.50 : 21,555,647.29 = 8,651,718.45 : x
  2. Step 2: Convert to fraction form
    15,621,223.50/21,555,647.29 = 8,651,718.45/x
  3. Step 3: Cross multiply
    15,621,223.50x = 21,555,647.29 × 8,651,718.45
  4. Step 4: Simplify right side
    15,621,223.50x = 186,493,391,395,728.75
  5. Step 5: Solve for x
    x = 186,493,391,395,728.75/15,621,223.50
  6. Step 6: Final answer
    x = 11,938,462.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.