Home / 39,993,023.40-55,190,097.54-21,657,889.32

Finding the Fourth Proportional to 39,993,023.40, 55,190,097.54 and 21,657,889.32

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Solution

The fourth proportional to 39,993,023.40, 55,190,097.54 and 21,657,889.32 is: 29,887,738.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,993,023.40 : 55,190,097.54 = 21,657,889.32 : x
  2. Step 2: Convert to fraction form
    39,993,023.40/55,190,097.54 = 21,657,889.32/x
  3. Step 3: Cross multiply
    39,993,023.40x = 55,190,097.54 × 21,657,889.32
  4. Step 4: Simplify right side
    39,993,023.40x = 1,195,301,024,081,324.25
  5. Step 5: Solve for x
    x = 1,195,301,024,081,324.25/39,993,023.40
  6. Step 6: Final answer
    x = 29,887,738.47

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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.