Home / 1,282,121,471,615.30-1,923,244,060,373.90-421,576,589,121.76

Finding the Fourth Proportional to 1,282,121,471,615.30, 1,923,244,060,373.90 and 421,576,589,121.76

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Solution

The fourth proportional to 1,282,121,471,615.30, 1,923,244,060,373.90 and 421,576,589,121.76 is: 632,385,221,658.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,121,471,615.30 : 1,923,244,060,373.90 = 421,576,589,121.76 : x
  2. Step 2: Convert to fraction form
    1,282,121,471,615.30/1,923,244,060,373.90 = 421,576,589,121.76/x
  3. Step 3: Cross multiply
    1,282,121,471,615.30x = 1,923,244,060,373.90 × 421,576,589,121.76
  4. Step 4: Simplify right side
    1,282,121,471,615.30x = 810,794,671,021,113,007,407,104
  5. Step 5: Solve for x
    x = 810,794,671,021,113,007,407,104/1,282,121,471,615.30
  6. Step 6: Final answer
    x = 632,385,221,658.93

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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.