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Finding the Fourth Proportional to 978,825,672.12, 1,350,621,375.66 and 561,061,083

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Solution

The fourth proportional to 978,825,672.12, 1,350,621,375.66 and 561,061,083 is: 774,173,699.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,825,672.12 : 1,350,621,375.66 = 561,061,083 : x
  2. Step 2: Convert to fraction form
    978,825,672.12/1,350,621,375.66 = 561,061,083/x
  3. Step 3: Cross multiply
    978,825,672.12x = 1,350,621,375.66 × 561,061,083
  4. Step 4: Simplify right side
    978,825,672.12x = 757,781,091,750,749,440
  5. Step 5: Solve for x
    x = 757,781,091,750,749,440/978,825,672.12
  6. Step 6: Final answer
    x = 774,173,699.50

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