Home / 919,936,830.80-1,379,905,246.20-593,419,480.40

Finding the Fourth Proportional to 919,936,830.80, 1,379,905,246.20 and 593,419,480.40

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Solution

The fourth proportional to 919,936,830.80, 1,379,905,246.20 and 593,419,480.40 is: 890,129,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,936,830.80 : 1,379,905,246.20 = 593,419,480.40 : x
  2. Step 2: Convert to fraction form
    919,936,830.80/1,379,905,246.20 = 593,419,480.40/x
  3. Step 3: Cross multiply
    919,936,830.80x = 1,379,905,246.20 × 593,419,480.40
  4. Step 4: Simplify right side
    919,936,830.80x = 818,862,654,201,238,016
  5. Step 5: Solve for x
    x = 818,862,654,201,238,016/919,936,830.80
  6. Step 6: Final answer
    x = 890,129,220.60

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1.5x scale

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.