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Finding the Fourth Proportional to 276,601,689.60, 414,902,534.40 and 260,729,318.40

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Solution

The fourth proportional to 276,601,689.60, 414,902,534.40 and 260,729,318.40 is: 391,093,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,601,689.60 : 414,902,534.40 = 260,729,318.40 : x
  2. Step 2: Convert to fraction form
    276,601,689.60/414,902,534.40 = 260,729,318.40/x
  3. Step 3: Cross multiply
    276,601,689.60x = 414,902,534.40 × 260,729,318.40
  4. Step 4: Simplify right side
    276,601,689.60x = 108,177,254,996,544,544
  5. Step 5: Solve for x
    x = 108,177,254,996,544,544/276,601,689.60
  6. Step 6: Final answer
    x = 391,093,977.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.