Home / 15,035,478.25-20,748,959.96-8,159,960.31

Finding the Fourth Proportional to 15,035,478.25, 20,748,959.96 and 8,159,960.31

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Solution

The fourth proportional to 15,035,478.25, 20,748,959.96 and 8,159,960.31 is: 11,260,745.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,035,478.25 : 20,748,959.96 = 8,159,960.31 : x
  2. Step 2: Convert to fraction form
    15,035,478.25/20,748,959.96 = 8,159,960.31/x
  3. Step 3: Cross multiply
    15,035,478.25x = 20,748,959.96 × 8,159,960.31
  4. Step 4: Simplify right side
    15,035,478.25x = 169,310,689,747,379.19
  5. Step 5: Solve for x
    x = 169,310,689,747,379.19/15,035,478.25
  6. Step 6: Final answer
    x = 11,260,745.21

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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.