Home / 38,985,101.45-53,800,076.98-21,343,709.69

Finding the Fourth Proportional to 38,985,101.45, 53,800,076.98 and 21,343,709.69

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Solution

The fourth proportional to 38,985,101.45, 53,800,076.98 and 21,343,709.69 is: 29,454,668.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,985,101.45 : 53,800,076.98 = 21,343,709.69 : x
  2. Step 2: Convert to fraction form
    38,985,101.45/53,800,076.98 = 21,343,709.69/x
  3. Step 3: Cross multiply
    38,985,101.45x = 53,800,076.98 × 21,343,709.69
  4. Step 4: Simplify right side
    38,985,101.45x = 1,148,293,224,320,158.75
  5. Step 5: Solve for x
    x = 1,148,293,224,320,158.75/38,985,101.45
  6. Step 6: Final answer
    x = 29,454,668.11

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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.