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Finding the Fourth Proportional to 580,880,432.40, 871,320,648.60 and 212,414,672.40

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Solution

The fourth proportional to 580,880,432.40, 871,320,648.60 and 212,414,672.40 is: 318,622,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,880,432.40 : 871,320,648.60 = 212,414,672.40 : x
  2. Step 2: Convert to fraction form
    580,880,432.40/871,320,648.60 = 212,414,672.40/x
  3. Step 3: Cross multiply
    580,880,432.40x = 871,320,648.60 × 212,414,672.40
  4. Step 4: Simplify right side
    580,880,432.40x = 185,081,290,127,724,544
  5. Step 5: Solve for x
    x = 185,081,290,127,724,544/580,880,432.40
  6. Step 6: Final answer
    x = 318,622,008.60

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