Home / 21,942,615,995.38-30,280,295,021.70-12,910,959,091.90

Finding the Fourth Proportional to 21,942,615,995.38, 30,280,295,021.70 and 12,910,959,091.90

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Solution

The fourth proportional to 21,942,615,995.38, 30,280,295,021.70 and 12,910,959,091.90 is: 17,816,820,492.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,942,615,995.38 : 30,280,295,021.70 = 12,910,959,091.90 : x
  2. Step 2: Convert to fraction form
    21,942,615,995.38/30,280,295,021.70 = 12,910,959,091.90/x
  3. Step 3: Cross multiply
    21,942,615,995.38x = 30,280,295,021.70 × 12,910,959,091.90
  4. Step 4: Simplify right side
    21,942,615,995.38x = 390,947,650,315,831,934,976
  5. Step 5: Solve for x
    x = 390,947,650,315,831,934,976/21,942,615,995.38
  6. Step 6: Final answer
    x = 17,816,820,492.06

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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.