Home / 20,802,603.80-28,708,439.37-11,510,022.70

Finding the Fourth Proportional to 20,802,603.80, 28,708,439.37 and 11,510,022.70

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Solution

The fourth proportional to 20,802,603.80, 28,708,439.37 and 11,510,022.70 is: 15,884,299.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802,603.80 : 28,708,439.37 = 11,510,022.70 : x
  2. Step 2: Convert to fraction form
    20,802,603.80/28,708,439.37 = 11,510,022.70/x
  3. Step 3: Cross multiply
    20,802,603.80x = 28,708,439.37 × 11,510,022.70
  4. Step 4: Simplify right side
    20,802,603.80x = 330,434,788,830,273.69
  5. Step 5: Solve for x
    x = 330,434,788,830,273.69/20,802,603.80
  6. Step 6: Final answer
    x = 15,884,299.49

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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.