Home / 128,866,724.14-177,841,935.31-75,945,665.27

Finding the Fourth Proportional to 128,866,724.14, 177,841,935.31 and 75,945,665.27

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Solution

The fourth proportional to 128,866,724.14, 177,841,935.31 and 75,945,665.27 is: 104,808,469.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,866,724.14 : 177,841,935.31 = 75,945,665.27 : x
  2. Step 2: Convert to fraction form
    128,866,724.14/177,841,935.31 = 75,945,665.27/x
  3. Step 3: Cross multiply
    128,866,724.14x = 177,841,935.31 × 75,945,665.27
  4. Step 4: Simplify right side
    128,866,724.14x = 13,506,324,090,022,254
  5. Step 5: Solve for x
    x = 13,506,324,090,022,254/128,866,724.14
  6. Step 6: Final answer
    x = 104,808,469.22

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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.