Home / 40,109,859.20-55,351,308.48-21,774,673.28

Finding the Fourth Proportional to 40,109,859.20, 55,351,308.48 and 21,774,673.28

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Solution

The fourth proportional to 40,109,859.20, 55,351,308.48 and 21,774,673.28 is: 30,048,887.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,109,859.20 : 55,351,308.48 = 21,774,673.28 : x
  2. Step 2: Convert to fraction form
    40,109,859.20/55,351,308.48 = 21,774,673.28/x
  3. Step 3: Cross multiply
    40,109,859.20x = 55,351,308.48 × 21,774,673.28
  4. Step 4: Simplify right side
    40,109,859.20x = 1,205,256,657,772,493.50
  5. Step 5: Solve for x
    x = 1,205,256,657,772,493.50/40,109,859.20
  6. Step 6: Final answer
    x = 30,048,887.78

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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.