Home / 15,060,645.90-20,783,852.37-8,185,128.30

Finding the Fourth Proportional to 15,060,645.90, 20,783,852.37 and 8,185,128.30

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Solution

The fourth proportional to 15,060,645.90, 20,783,852.37 and 8,185,128.30 is: 11,295,564.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,060,645.90 : 20,783,852.37 = 8,185,128.30 : x
  2. Step 2: Convert to fraction form
    15,060,645.90/20,783,852.37 = 8,185,128.30/x
  3. Step 3: Cross multiply
    15,060,645.90x = 20,783,852.37 × 8,185,128.30
  4. Step 4: Simplify right side
    15,060,645.90x = 170,118,498,216,709.06
  5. Step 5: Solve for x
    x = 170,118,498,216,709.06/15,060,645.90
  6. Step 6: Final answer
    x = 11,295,564.57

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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.