Home / 189,158,821.56-261,039,285.70-105,526,952.45

Finding the Fourth Proportional to 189,158,821.56, 261,039,285.70 and 105,526,952.45

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Solution

The fourth proportional to 189,158,821.56, 261,039,285.70 and 105,526,952.45 is: 145,627,256.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,158,821.56 : 261,039,285.70 = 105,526,952.45 : x
  2. Step 2: Convert to fraction form
    189,158,821.56/261,039,285.70 = 105,526,952.45/x
  3. Step 3: Cross multiply
    189,158,821.56x = 261,039,285.70 × 105,526,952.45
  4. Step 4: Simplify right side
    189,158,821.56x = 27,546,680,289,512,904
  5. Step 5: Solve for x
    x = 27,546,680,289,512,904/189,158,821.56
  6. Step 6: Final answer
    x = 145,627,256.84

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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.