Home / 38,478,071.42-53,099,789.74-20,837,004.38

Finding the Fourth Proportional to 38,478,071.42, 53,099,789.74 and 20,837,004.38

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Solution

The fourth proportional to 38,478,071.42, 53,099,789.74 and 20,837,004.38 is: 28,755,093.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478,071.42 : 53,099,789.74 = 20,837,004.38 : x
  2. Step 2: Convert to fraction form
    38,478,071.42/53,099,789.74 = 20,837,004.38/x
  3. Step 3: Cross multiply
    38,478,071.42x = 53,099,789.74 × 20,837,004.38
  4. Step 4: Simplify right side
    38,478,071.42x = 1,106,440,551,389,459
  5. Step 5: Solve for x
    x = 1,106,440,551,389,459/38,478,071.42
  6. Step 6: Final answer
    x = 28,755,093.76

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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.