Home / 21,942,615,991.36-30,280,295,016.18-12,910,959,087.89

Finding the Fourth Proportional to 21,942,615,991.36, 30,280,295,016.18 and 12,910,959,087.89

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Solution

The fourth proportional to 21,942,615,991.36, 30,280,295,016.18 and 12,910,959,087.89 is: 17,816,820,486.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,942,615,991.36 : 30,280,295,016.18 = 12,910,959,087.89 : x
  2. Step 2: Convert to fraction form
    21,942,615,991.36/30,280,295,016.18 = 12,910,959,087.89/x
  3. Step 3: Cross multiply
    21,942,615,991.36x = 30,280,295,016.18 × 12,910,959,087.89
  4. Step 4: Simplify right side
    21,942,615,991.36x = 390,947,650,122,988,060,672
  5. Step 5: Solve for x
    x = 390,947,650,122,988,060,672/21,942,615,991.36
  6. Step 6: Final answer
    x = 17,816,820,486.53

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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.