Home / 12,422,166.72-18,637,053.12-6,361,189.76

Finding the Fourth Proportional to 12,422,166.72, 18,637,053.12 and 6,361,189.76

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Solution

The fourth proportional to 12,422,166.72, 18,637,053.12 and 6,361,189.76 is: 9,543,732.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422,166.72 : 18,637,053.12 = 6,361,189.76 : x
  2. Step 2: Convert to fraction form
    12,422,166.72/18,637,053.12 = 6,361,189.76/x
  3. Step 3: Cross multiply
    12,422,166.72x = 18,637,053.12 × 6,361,189.76
  4. Step 4: Simplify right side
    12,422,166.72x = 118,553,831,463,520.05
  5. Step 5: Solve for x
    x = 118,553,831,463,520.05/12,422,166.72
  6. Step 6: Final answer
    x = 9,543,732.11

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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.