Home / 38,591,855.62-53,256,865.54-21,189,328

Finding the Fourth Proportional to 38,591,855.62, 53,256,865.54 and 21,189,328

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Solution

The fourth proportional to 38,591,855.62, 53,256,865.54 and 21,189,328 is: 29,241,330.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,591,855.62 : 53,256,865.54 = 21,189,328 : x
  2. Step 2: Convert to fraction form
    38,591,855.62/53,256,865.54 = 21,189,328/x
  3. Step 3: Cross multiply
    38,591,855.62x = 53,256,865.54 × 21,189,328
  4. Step 4: Simplify right side
    38,591,855.62x = 1,128,477,192,178,957
  5. Step 5: Solve for x
    x = 1,128,477,192,178,957/38,591,855.62
  6. Step 6: Final answer
    x = 29,241,330.17

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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.