Home / 15,305,624.34-21,121,761.84-8,430,106.41

Finding the Fourth Proportional to 15,305,624.34, 21,121,761.84 and 8,430,106.41

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Solution

The fourth proportional to 15,305,624.34, 21,121,761.84 and 8,430,106.41 is: 11,633,546.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,305,624.34 : 21,121,761.84 = 8,430,106.41 : x
  2. Step 2: Convert to fraction form
    15,305,624.34/21,121,761.84 = 8,430,106.41/x
  3. Step 3: Cross multiply
    15,305,624.34x = 21,121,761.84 × 8,430,106.41
  4. Step 4: Simplify right side
    15,305,624.34x = 178,058,699,772,268.56
  5. Step 5: Solve for x
    x = 178,058,699,772,268.56/15,305,624.34
  6. Step 6: Final answer
    x = 11,633,546.98

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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.