Home / 38,491,811.18-53,118,256.60-20,850,376.89

Finding the Fourth Proportional to 38,491,811.18, 53,118,256.60 and 20,850,376.89

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Solution

The fourth proportional to 38,491,811.18, 53,118,256.60 and 20,850,376.89 is: 28,773,280.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,491,811.18 : 53,118,256.60 = 20,850,376.89 : x
  2. Step 2: Convert to fraction form
    38,491,811.18/53,118,256.60 = 20,850,376.89/x
  3. Step 3: Cross multiply
    38,491,811.18x = 53,118,256.60 × 20,850,376.89
  4. Step 4: Simplify right side
    38,491,811.18x = 1,107,535,669,957,703
  5. Step 5: Solve for x
    x = 1,107,535,669,957,703/38,491,811.18
  6. Step 6: Final answer
    x = 28,773,280.24

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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.