Home / 123,763,971.64-170,795,640.28-68,009,406.36

Finding the Fourth Proportional to 123,763,971.64, 170,795,640.28 and 68,009,406.36

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Solution

The fourth proportional to 123,763,971.64, 170,795,640.28 and 68,009,406.36 is: 93,853,727.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,763,971.64 : 170,795,640.28 = 68,009,406.36 : x
  2. Step 2: Convert to fraction form
    123,763,971.64/170,795,640.28 = 68,009,406.36/x
  3. Step 3: Cross multiply
    123,763,971.64x = 170,795,640.28 × 68,009,406.36
  4. Step 4: Simplify right side
    123,763,971.64x = 11,615,710,104,318,904
  5. Step 5: Solve for x
    x = 11,615,710,104,318,904/123,763,971.64
  6. Step 6: Final answer
    x = 93,853,727.79

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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.