Home / 21,389,111,763.27-29,515,493,027.04-11,872,913,983.67

Finding the Fourth Proportional to 21,389,111,763.27, 29,515,493,027.04 and 11,872,913,983.67

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Solution

The fourth proportional to 21,389,111,763.27, 29,515,493,027.04 and 11,872,913,983.67 is: 16,383,799,092.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,389,111,763.27 : 29,515,493,027.04 = 11,872,913,983.67 : x
  2. Step 2: Convert to fraction form
    21,389,111,763.27/29,515,493,027.04 = 11,872,913,983.67/x
  3. Step 3: Cross multiply
    21,389,111,763.27x = 29,515,493,027.04 × 11,872,913,983.67
  4. Step 4: Simplify right side
    21,389,111,763.27x = 350,434,909,895,510,065,152
  5. Step 5: Solve for x
    x = 350,434,909,895,510,065,152/21,389,111,763.27
  6. Step 6: Final answer
    x = 16,383,799,092.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.