Home / 919,936,836.30-1,379,905,254.45-593,419,485.90

Finding the Fourth Proportional to 919,936,836.30, 1,379,905,254.45 and 593,419,485.90

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Solution

The fourth proportional to 919,936,836.30, 1,379,905,254.45 and 593,419,485.90 is: 890,129,228.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,936,836.30 : 1,379,905,254.45 = 593,419,485.90 : x
  2. Step 2: Convert to fraction form
    919,936,836.30/1,379,905,254.45 = 593,419,485.90/x
  3. Step 3: Cross multiply
    919,936,836.30x = 1,379,905,254.45 × 593,419,485.90
  4. Step 4: Simplify right side
    919,936,836.30x = 818,862,666,686,427,648
  5. Step 5: Solve for x
    x = 818,862,666,686,427,648/919,936,836.30
  6. Step 6: Final answer
    x = 890,129,228.85

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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.