Home / 20,615,510.85-28,449,747.63-11,323,940.10

Finding the Fourth Proportional to 20,615,510.85, 28,449,747.63 and 11,323,940.10

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Solution

The fourth proportional to 20,615,510.85, 28,449,747.63 and 11,323,940.10 is: 15,627,225.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,615,510.85 : 28,449,747.63 = 11,323,940.10 : x
  2. Step 2: Convert to fraction form
    20,615,510.85/28,449,747.63 = 11,323,940.10/x
  3. Step 3: Cross multiply
    20,615,510.85x = 28,449,747.63 × 11,323,940.10
  4. Step 4: Simplify right side
    20,615,510.85x = 322,163,238,022,236.94
  5. Step 5: Solve for x
    x = 322,163,238,022,236.94/20,615,510.85
  6. Step 6: Final answer
    x = 15,627,225.56

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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.