Home / 38,676,885.10-53,374,128.69-21,274,554.22

Finding the Fourth Proportional to 38,676,885.10, 53,374,128.69 and 21,274,554.22

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Solution

The fourth proportional to 38,676,885.10, 53,374,128.69 and 21,274,554.22 is: 29,358,899.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,676,885.10 : 53,374,128.69 = 21,274,554.22 : x
  2. Step 2: Convert to fraction form
    38,676,885.10/53,374,128.69 = 21,274,554.22/x
  3. Step 3: Cross multiply
    38,676,885.10x = 53,374,128.69 × 21,274,554.22
  4. Step 4: Simplify right side
    38,676,885.10x = 1,135,510,794,760,662.50
  5. Step 5: Solve for x
    x = 1,135,510,794,760,662.50/38,676,885.10
  6. Step 6: Final answer
    x = 29,358,899.81

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Double scale
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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.