Home / 393,227,816.40-590,219,638.20-199,358,139.60

Finding the Fourth Proportional to 393,227,816.40, 590,219,638.20 and 199,358,139.60

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Solution

The fourth proportional to 393,227,816.40, 590,219,638.20 and 199,358,139.60 is: 299,228,803.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,227,816.40 : 590,219,638.20 = 199,358,139.60 : x
  2. Step 2: Convert to fraction form
    393,227,816.40/590,219,638.20 = 199,358,139.60/x
  3. Step 3: Cross multiply
    393,227,816.40x = 590,219,638.20 × 199,358,139.60
  4. Step 4: Simplify right side
    393,227,816.40x = 117,665,089,026,937,104
  5. Step 5: Solve for x
    x = 117,665,089,026,937,104/393,227,816.40
  6. Step 6: Final answer
    x = 299,228,803.56

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