Home / 21,323,774.20-31,922,884.83-13,210,663.03

Finding the Fourth Proportional to 21,323,774.20, 31,922,884.83 and 13,210,663.03

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Solution

The fourth proportional to 21,323,774.20, 31,922,884.83 and 13,210,663.03 is: 19,777,102.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323,774.20 : 31,922,884.83 = 13,210,663.03 : x
  2. Step 2: Convert to fraction form
    21,323,774.20/31,922,884.83 = 13,210,663.03/x
  3. Step 3: Cross multiply
    21,323,774.20x = 31,922,884.83 × 13,210,663.03
  4. Step 4: Simplify right side
    21,323,774.20x = 421,722,474,401,289.69
  5. Step 5: Solve for x
    x = 421,722,474,401,289.69/21,323,774.20
  6. Step 6: Final answer
    x = 19,777,102.80

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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.