Home / 120,042,384.62-165,607,764.48-80,362,699.57

Finding the Fourth Proportional to 120,042,384.62, 165,607,764.48 and 80,362,699.57

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Solution

The fourth proportional to 120,042,384.62, 165,607,764.48 and 80,362,699.57 is: 110,866,566.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,042,384.62 : 165,607,764.48 = 80,362,699.57 : x
  2. Step 2: Convert to fraction form
    120,042,384.62/165,607,764.48 = 80,362,699.57/x
  3. Step 3: Cross multiply
    120,042,384.62x = 165,607,764.48 × 80,362,699.57
  4. Step 4: Simplify right side
    120,042,384.62x = 13,308,687,022,880,422
  5. Step 5: Solve for x
    x = 13,308,687,022,880,422/120,042,384.62
  6. Step 6: Final answer
    x = 110,866,566.54

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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.