Home / 19,008,005.70-28,512,008.55-7,656,600.90

Finding the Fourth Proportional to 19,008,005.70, 28,512,008.55 and 7,656,600.90

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Solution

The fourth proportional to 19,008,005.70, 28,512,008.55 and 7,656,600.90 is: 11,484,901.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008,005.70 : 28,512,008.55 = 7,656,600.90 : x
  2. Step 2: Convert to fraction form
    19,008,005.70/28,512,008.55 = 7,656,600.90/x
  3. Step 3: Cross multiply
    19,008,005.70x = 28,512,008.55 × 7,656,600.90
  4. Step 4: Simplify right side
    19,008,005.70x = 218,305,070,324,737.72
  5. Step 5: Solve for x
    x = 218,305,070,324,737.72/19,008,005.70
  6. Step 6: Final answer
    x = 11,484,901.35

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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.