Home / 38,893,400.97-53,672,783.13-21,489,622.20

Finding the Fourth Proportional to 38,893,400.97, 53,672,783.13 and 21,489,622.20

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Solution

The fourth proportional to 38,893,400.97, 53,672,783.13 and 21,489,622.20 is: 29,655,617.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,893,400.97 : 53,672,783.13 = 21,489,622.20 : x
  2. Step 2: Convert to fraction form
    38,893,400.97/53,672,783.13 = 21,489,622.20/x
  3. Step 3: Cross multiply
    38,893,400.97x = 53,672,783.13 × 21,489,622.20
  4. Step 4: Simplify right side
    38,893,400.97x = 1,153,407,831,886,233.50
  5. Step 5: Solve for x
    x = 1,153,407,831,886,233.50/38,893,400.97
  6. Step 6: Final answer
    x = 29,655,617.74

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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.