Home / 20,802,600.31-28,708,434.53-11,510,019.20

Finding the Fourth Proportional to 20,802,600.31, 28,708,434.53 and 11,510,019.20

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Solution

The fourth proportional to 20,802,600.31, 28,708,434.53 and 11,510,019.20 is: 15,884,294.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802,600.31 : 28,708,434.53 = 11,510,019.20 : x
  2. Step 2: Convert to fraction form
    20,802,600.31/28,708,434.53 = 11,510,019.20/x
  3. Step 3: Cross multiply
    20,802,600.31x = 28,708,434.53 × 11,510,019.20
  4. Step 4: Simplify right side
    20,802,600.31x = 330,434,632,570,571.88
  5. Step 5: Solve for x
    x = 330,434,632,570,571.88/20,802,600.31
  6. Step 6: Final answer
    x = 15,884,294.64

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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.