Home / 20,722,152,324.42-28,596,655,783.26-11,206,703,872.98

Finding the Fourth Proportional to 20,722,152,324.42, 28,596,655,783.26 and 11,206,703,872.98

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Solution

The fourth proportional to 20,722,152,324.42, 28,596,655,783.26 and 11,206,703,872.98 is: 15,465,297,624.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722,152,324.42 : 28,596,655,783.26 = 11,206,703,872.98 : x
  2. Step 2: Convert to fraction form
    20,722,152,324.42/28,596,655,783.26 = 11,206,703,872.98/x
  3. Step 3: Cross multiply
    20,722,152,324.42x = 28,596,655,783.26 × 11,206,703,872.98
  4. Step 4: Simplify right side
    20,722,152,324.42x = 320,474,253,120,535,724,032
  5. Step 5: Solve for x
    x = 320,474,253,120,535,724,032/20,722,152,324.42
  6. Step 6: Final answer
    x = 15,465,297,624.65

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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.