Home / 38,639,307.60-57,958,961.40-20,723,403.60

Finding the Fourth Proportional to 38,639,307.60, 57,958,961.40 and 20,723,403.60

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Solution

The fourth proportional to 38,639,307.60, 57,958,961.40 and 20,723,403.60 is: 31,085,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639,307.60 : 57,958,961.40 = 20,723,403.60 : x
  2. Step 2: Convert to fraction form
    38,639,307.60/57,958,961.40 = 20,723,403.60/x
  3. Step 3: Cross multiply
    38,639,307.60x = 57,958,961.40 × 20,723,403.60
  4. Step 4: Simplify right side
    38,639,307.60x = 1,201,106,949,329,021
  5. Step 5: Solve for x
    x = 1,201,106,949,329,021/38,639,307.60
  6. Step 6: Final answer
    x = 31,085,105.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.