Home / 21,942,615,986.88-30,280,295,010.04-12,910,959,083.36

Finding the Fourth Proportional to 21,942,615,986.88, 30,280,295,010.04 and 12,910,959,083.36

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Solution

The fourth proportional to 21,942,615,986.88, 30,280,295,010.04 and 12,910,959,083.36 is: 17,816,820,480.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,942,615,986.88 : 30,280,295,010.04 = 12,910,959,083.36 : x
  2. Step 2: Convert to fraction form
    21,942,615,986.88/30,280,295,010.04 = 12,910,959,083.36/x
  3. Step 3: Cross multiply
    21,942,615,986.88x = 30,280,295,010.04 × 12,910,959,083.36
  4. Step 4: Simplify right side
    21,942,615,986.88x = 390,947,649,906,696,454,144
  5. Step 5: Solve for x
    x = 390,947,649,906,696,454,144/21,942,615,986.88
  6. Step 6: Final answer
    x = 17,816,820,480.31

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1.5x scale

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.