Home / 128,270,041.62-177,012,893.73-69,532,525.09

Finding the Fourth Proportional to 128,270,041.62, 177,012,893.73 and 69,532,525.09

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Solution

The fourth proportional to 128,270,041.62, 177,012,893.73 and 69,532,525.09 is: 95,955,012.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,270,041.62 : 177,012,893.73 = 69,532,525.09 : x
  2. Step 2: Convert to fraction form
    128,270,041.62/177,012,893.73 = 69,532,525.09/x
  3. Step 3: Cross multiply
    128,270,041.62x = 177,012,893.73 × 69,532,525.09
  4. Step 4: Simplify right side
    128,270,041.62x = 12,308,153,474,534,728
  5. Step 5: Solve for x
    x = 12,308,153,474,534,728/128,270,041.62
  6. Step 6: Final answer
    x = 95,955,012.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.