Home / 20,775,898.17-28,670,679.27-11,608,548.21

Finding the Fourth Proportional to 20,775,898.17, 28,670,679.27 and 11,608,548.21

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Solution

The fourth proportional to 20,775,898.17, 28,670,679.27 and 11,608,548.21 is: 16,019,762.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775,898.17 : 28,670,679.27 = 11,608,548.21 : x
  2. Step 2: Convert to fraction form
    20,775,898.17/28,670,679.27 = 11,608,548.21/x
  3. Step 3: Cross multiply
    20,775,898.17x = 28,670,679.27 × 11,608,548.21
  4. Step 4: Simplify right side
    20,775,898.17x = 332,824,962,519,242.62
  5. Step 5: Solve for x
    x = 332,824,962,519,242.62/20,775,898.17
  6. Step 6: Final answer
    x = 16,019,762.89

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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.