Home / 12,112,658.55-18,149,710.73-8,476,273.49

Finding the Fourth Proportional to 12,112,658.55, 18,149,710.73 and 8,476,273.49

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Solution

The fourth proportional to 12,112,658.55, 18,149,710.73 and 8,476,273.49 is: 12,700,920.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112,658.55 : 18,149,710.73 = 8,476,273.49 : x
  2. Step 2: Convert to fraction form
    12,112,658.55/18,149,710.73 = 8,476,273.49/x
  3. Step 3: Cross multiply
    12,112,658.55x = 18,149,710.73 × 8,476,273.49
  4. Step 4: Simplify right side
    12,112,658.55x = 153,841,911,778,737.62
  5. Step 5: Solve for x
    x = 153,841,911,778,737.62/12,112,658.55
  6. Step 6: Final answer
    x = 12,700,920.38

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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.