Home / 111,374,155.64-153,724,587.78-76,106,236.20

Finding the Fourth Proportional to 111,374,155.64, 153,724,587.78 and 76,106,236.20

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Solution

The fourth proportional to 111,374,155.64, 153,724,587.78 and 76,106,236.20 is: 105,045,912.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,374,155.64 : 153,724,587.78 = 76,106,236.20 : x
  2. Step 2: Convert to fraction form
    111,374,155.64/153,724,587.78 = 76,106,236.20/x
  3. Step 3: Cross multiply
    111,374,155.64x = 153,724,587.78 × 76,106,236.20
  4. Step 4: Simplify right side
    111,374,155.64x = 11,699,399,786,951,784
  5. Step 5: Solve for x
    x = 11,699,399,786,951,784/111,374,155.64
  6. Step 6: Final answer
    x = 105,045,912.31

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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.