Home / 20,317,100.94-28,036,143.63-11,615,640.30

Finding the Fourth Proportional to 20,317,100.94, 28,036,143.63 and 11,615,640.30

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Solution

The fourth proportional to 20,317,100.94, 28,036,143.63 and 11,615,640.30 is: 16,028,751.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317,100.94 : 28,036,143.63 = 11,615,640.30 : x
  2. Step 2: Convert to fraction form
    20,317,100.94/28,036,143.63 = 11,615,640.30/x
  3. Step 3: Cross multiply
    20,317,100.94x = 28,036,143.63 × 11,615,640.30
  4. Step 4: Simplify right side
    20,317,100.94x = 325,657,759,805,216.31
  5. Step 5: Solve for x
    x = 325,657,759,805,216.31/20,317,100.94
  6. Step 6: Final answer
    x = 16,028,751.38

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1.5x scale

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.