Home / 38,478,063.82-53,099,779.28-20,836,996.81

Finding the Fourth Proportional to 38,478,063.82, 53,099,779.28 and 20,836,996.81

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Solution

The fourth proportional to 38,478,063.82, 53,099,779.28 and 20,836,996.81 is: 28,755,083.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478,063.82 : 53,099,779.28 = 20,836,996.81 : x
  2. Step 2: Convert to fraction form
    38,478,063.82/53,099,779.28 = 20,836,996.81/x
  3. Step 3: Cross multiply
    38,478,063.82x = 53,099,779.28 × 20,836,996.81
  4. Step 4: Simplify right side
    38,478,063.82x = 1,106,439,931,388,407.12
  5. Step 5: Solve for x
    x = 1,106,439,931,388,407.12/38,478,063.82
  6. Step 6: Final answer
    x = 28,755,083.33

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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.