Home / 20,591,880.81-28,416,717.53-11,299,606.35

Finding the Fourth Proportional to 20,591,880.81, 28,416,717.53 and 11,299,606.35

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Solution

The fourth proportional to 20,591,880.81, 28,416,717.53 and 11,299,606.35 is: 15,593,413.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,591,880.81 : 28,416,717.53 = 11,299,606.35 : x
  2. Step 2: Convert to fraction form
    20,591,880.81/28,416,717.53 = 11,299,606.35/x
  3. Step 3: Cross multiply
    20,591,880.81x = 28,416,717.53 × 11,299,606.35
  4. Step 4: Simplify right side
    20,591,880.81x = 321,097,721,791,646.25
  5. Step 5: Solve for x
    x = 321,097,721,791,646.25/20,591,880.81
  6. Step 6: Final answer
    x = 15,593,413.97

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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.