Home / 919,936,831.80-1,379,905,247.70-593,419,481.40

Finding the Fourth Proportional to 919,936,831.80, 1,379,905,247.70 and 593,419,481.40

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Solution

The fourth proportional to 919,936,831.80, 1,379,905,247.70 and 593,419,481.40 is: 890,129,222.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,936,831.80 : 1,379,905,247.70 = 593,419,481.40 : x
  2. Step 2: Convert to fraction form
    919,936,831.80/1,379,905,247.70 = 593,419,481.40/x
  3. Step 3: Cross multiply
    919,936,831.80x = 1,379,905,247.70 × 593,419,481.40
  4. Step 4: Simplify right side
    919,936,831.80x = 818,862,656,471,272,576
  5. Step 5: Solve for x
    x = 818,862,656,471,272,576/919,936,831.80
  6. Step 6: Final answer
    x = 890,129,222.10

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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.