Home / 38,618,697.08-53,293,836.90-21,216,169.64

Finding the Fourth Proportional to 38,618,697.08, 53,293,836.90 and 21,216,169.64

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Solution

The fourth proportional to 38,618,697.08, 53,293,836.90 and 21,216,169.64 is: 29,278,333.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,618,697.08 : 53,293,836.90 = 21,216,169.64 : x
  2. Step 2: Convert to fraction form
    38,618,697.08/53,293,836.90 = 21,216,169.64/x
  3. Step 3: Cross multiply
    38,618,697.08x = 53,293,836.90 × 21,216,169.64
  4. Step 4: Simplify right side
    38,618,697.08x = 1,130,691,084,436,891.75
  5. Step 5: Solve for x
    x = 1,130,691,084,436,891.75/38,618,697.08
  6. Step 6: Final answer
    x = 29,278,333.29

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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.