Home / 21,687,412.70-32,468,133.45-21,057,556.70

Finding the Fourth Proportional to 21,687,412.70, 32,468,133.45 and 21,057,556.70

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Solution

The fourth proportional to 21,687,412.70, 32,468,133.45 and 21,057,556.70 is: 31,525,178.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,687,412.70 : 32,468,133.45 = 21,057,556.70 : x
  2. Step 2: Convert to fraction form
    21,687,412.70/32,468,133.45 = 21,057,556.70/x
  3. Step 3: Cross multiply
    21,687,412.70x = 32,468,133.45 × 21,057,556.70
  4. Step 4: Simplify right side
    21,687,412.70x = 683,699,561,066,541.62
  5. Step 5: Solve for x
    x = 683,699,561,066,541.62/21,687,412.70
  6. Step 6: Final answer
    x = 31,525,178.71

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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.