Home / 90,645,481.05-125,086,852.31-51,487,135.89

Finding the Fourth Proportional to 90,645,481.05, 125,086,852.31 and 51,487,135.89

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Solution

The fourth proportional to 90,645,481.05, 125,086,852.31 and 51,487,135.89 is: 71,050,025.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,645,481.05 : 125,086,852.31 = 51,487,135.89 : x
  2. Step 2: Convert to fraction form
    90,645,481.05/125,086,852.31 = 51,487,135.89/x
  3. Step 3: Cross multiply
    90,645,481.05x = 125,086,852.31 × 51,487,135.89
  4. Step 4: Simplify right side
    90,645,481.05x = 6,440,363,762,679,895
  5. Step 5: Solve for x
    x = 6,440,363,762,679,895/90,645,481.05
  6. Step 6: Final answer
    x = 71,050,025.75

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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.