Home / 13,185,971.28-19,743,520.32-8,367,572.88

Finding the Fourth Proportional to 13,185,971.28, 19,743,520.32 and 8,367,572.88

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Solution

The fourth proportional to 13,185,971.28, 19,743,520.32 and 8,367,572.88 is: 12,528,871.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185,971.28 : 19,743,520.32 = 8,367,572.88 : x
  2. Step 2: Convert to fraction form
    13,185,971.28/19,743,520.32 = 8,367,572.88/x
  3. Step 3: Cross multiply
    13,185,971.28x = 19,743,520.32 × 8,367,572.88
  4. Step 4: Simplify right side
    13,185,971.28x = 165,205,345,185,360.94
  5. Step 5: Solve for x
    x = 165,205,345,185,360.94/13,185,971.28
  6. Step 6: Final answer
    x = 12,528,871.91

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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.