Home / 38,832,164.20-53,588,031.78-21,428,669.80

Finding the Fourth Proportional to 38,832,164.20, 53,588,031.78 and 21,428,669.80

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Solution

The fourth proportional to 38,832,164.20, 53,588,031.78 and 21,428,669.80 is: 29,571,368.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,832,164.20 : 53,588,031.78 = 21,428,669.80 : x
  2. Step 2: Convert to fraction form
    38,832,164.20/53,588,031.78 = 21,428,669.80/x
  3. Step 3: Cross multiply
    38,832,164.20x = 53,588,031.78 × 21,428,669.80
  4. Step 4: Simplify right side
    38,832,164.20x = 1,148,320,238,245,526.25
  5. Step 5: Solve for x
    x = 1,148,320,238,245,526.25/38,832,164.20
  6. Step 6: Final answer
    x = 29,571,368.53

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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.