Home / 21,290,942,528.80-31,936,413,793.20-13,025,972,096.80

Finding the Fourth Proportional to 21,290,942,528.80, 31,936,413,793.20 and 13,025,972,096.80

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Solution

The fourth proportional to 21,290,942,528.80, 31,936,413,793.20 and 13,025,972,096.80 is: 19,538,958,145.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,290,942,528.80 : 31,936,413,793.20 = 13,025,972,096.80 : x
  2. Step 2: Convert to fraction form
    21,290,942,528.80/31,936,413,793.20 = 13,025,972,096.80/x
  3. Step 3: Cross multiply
    21,290,942,528.80x = 31,936,413,793.20 × 13,025,972,096.80
  4. Step 4: Simplify right side
    21,290,942,528.80x = 416,002,834,942,081,826,816
  5. Step 5: Solve for x
    x = 416,002,834,942,081,826,816/21,290,942,528.80
  6. Step 6: Final answer
    x = 19,538,958,145.20

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1.5x scale

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.