Home / 38,478,068.41-53,099,785.59-20,837,001.37

Finding the Fourth Proportional to 38,478,068.41, 53,099,785.59 and 20,837,001.37

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Solution

The fourth proportional to 38,478,068.41, 53,099,785.59 and 20,837,001.37 is: 28,755,089.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478,068.41 : 53,099,785.59 = 20,837,001.37 : x
  2. Step 2: Convert to fraction form
    38,478,068.41/53,099,785.59 = 20,837,001.37/x
  3. Step 3: Cross multiply
    38,478,068.41x = 53,099,785.59 × 20,837,001.37
  4. Step 4: Simplify right side
    38,478,068.41x = 1,106,440,305,085,536.38
  5. Step 5: Solve for x
    x = 1,106,440,305,085,536.38/38,478,068.41
  6. Step 6: Final answer
    x = 28,755,089.61

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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.