Home / 20,466,329.67-28,243,388.73-11,173,899.45

Finding the Fourth Proportional to 20,466,329.67, 28,243,388.73 and 11,173,899.45

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Solution

The fourth proportional to 20,466,329.67, 28,243,388.73 and 11,173,899.45 is: 15,419,901.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466,329.67 : 28,243,388.73 = 11,173,899.45 : x
  2. Step 2: Convert to fraction form
    20,466,329.67/28,243,388.73 = 11,173,899.45/x
  3. Step 3: Cross multiply
    20,466,329.67x = 28,243,388.73 × 11,173,899.45
  4. Step 4: Simplify right side
    20,466,329.67x = 315,588,785,796,283.19
  5. Step 5: Solve for x
    x = 315,588,785,796,283.19/20,466,329.67
  6. Step 6: Final answer
    x = 15,419,901.41

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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.