Home / 80,403,181-120,545,973-25,784,676.40

Finding the Fourth Proportional to 80,403,181, 120,545,973 and 25,784,676.40

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Solution

The fourth proportional to 80,403,181, 120,545,973 and 25,784,676.40 is: 38,658,158.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,403,181 : 120,545,973 = 25,784,676.40 : x
  2. Step 2: Convert to fraction form
    80,403,181/120,545,973 = 25,784,676.40/x
  3. Step 3: Cross multiply
    80,403,181x = 120,545,973 × 25,784,676.40
  4. Step 4: Simplify right side
    80,403,181x = 3,108,238,905,128,137
  5. Step 5: Solve for x
    x = 3,108,238,905,128,137/80,403,181
  6. Step 6: Final answer
    x = 38,658,158.38

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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.