Home / 15,321,466.35-21,142,859.43-8,705,180.88

Finding the Fourth Proportional to 15,321,466.35, 21,142,859.43 and 8,705,180.88

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Solution

The fourth proportional to 15,321,466.35, 21,142,859.43 and 8,705,180.88 is: 12,012,715.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,321,466.35 : 21,142,859.43 = 8,705,180.88 : x
  2. Step 2: Convert to fraction form
    15,321,466.35/21,142,859.43 = 8,705,180.88/x
  3. Step 3: Cross multiply
    15,321,466.35x = 21,142,859.43 × 8,705,180.88
  4. Step 4: Simplify right side
    15,321,466.35x = 184,052,415,658,563.72
  5. Step 5: Solve for x
    x = 184,052,415,658,563.72/15,321,466.35
  6. Step 6: Final answer
    x = 12,012,715.46

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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.