Home / 128,133,134.37-176,823,669.96-69,395,802.39

Finding the Fourth Proportional to 128,133,134.37, 176,823,669.96 and 69,395,802.39

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Solution

The fourth proportional to 128,133,134.37, 176,823,669.96 and 69,395,802.39 is: 95,766,177.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,133,134.37 : 176,823,669.96 = 69,395,802.39 : x
  2. Step 2: Convert to fraction form
    128,133,134.37/176,823,669.96 = 69,395,802.39/x
  3. Step 3: Cross multiply
    128,133,134.37x = 176,823,669.96 × 69,395,802.39
  4. Step 4: Simplify right side
    128,133,134.37x = 12,270,820,458,418,740
  5. Step 5: Solve for x
    x = 12,270,820,458,418,740/128,133,134.37
  6. Step 6: Final answer
    x = 95,766,177.26

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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.