Home / 80,515,915.20-120,773,872.80-37,370,779.20

Finding the Fourth Proportional to 80,515,915.20, 120,773,872.80 and 37,370,779.20

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Solution

The fourth proportional to 80,515,915.20, 120,773,872.80 and 37,370,779.20 is: 56,056,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,515,915.20 : 120,773,872.80 = 37,370,779.20 : x
  2. Step 2: Convert to fraction form
    80,515,915.20/120,773,872.80 = 37,370,779.20/x
  3. Step 3: Cross multiply
    80,515,915.20x = 120,773,872.80 × 37,370,779.20
  4. Step 4: Simplify right side
    80,515,915.20x = 4,513,413,733,537,686
  5. Step 5: Solve for x
    x = 4,513,413,733,537,686/80,515,915.20
  6. Step 6: Final answer
    x = 56,056,168.80

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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.