Home / 76,728,567.94-115,138,244.31-28,240,477.54

Finding the Fourth Proportional to 76,728,567.94, 115,138,244.31 and 28,240,477.54

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Solution

The fourth proportional to 76,728,567.94, 115,138,244.31 and 28,240,477.54 is: 42,377,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,728,567.94 : 115,138,244.31 = 28,240,477.54 : x
  2. Step 2: Convert to fraction form
    76,728,567.94/115,138,244.31 = 28,240,477.54/x
  3. Step 3: Cross multiply
    76,728,567.94x = 115,138,244.31 × 28,240,477.54
  4. Step 4: Simplify right side
    76,728,567.94x = 3,251,559,002,431,588
  5. Step 5: Solve for x
    x = 3,251,559,002,431,588/76,728,567.94
  6. Step 6: Final answer
    x = 42,377,423.30

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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.