Home / 20,118,504,859.20-30,177,757,288.80-6,868,724,135.40

Finding the Fourth Proportional to 20,118,504,859.20, 30,177,757,288.80 and 6,868,724,135.40

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Solution

The fourth proportional to 20,118,504,859.20, 30,177,757,288.80 and 6,868,724,135.40 is: 10,303,086,203.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118,504,859.20 : 30,177,757,288.80 = 6,868,724,135.40 : x
  2. Step 2: Convert to fraction form
    20,118,504,859.20/30,177,757,288.80 = 6,868,724,135.40/x
  3. Step 3: Cross multiply
    20,118,504,859.20x = 30,177,757,288.80 × 6,868,724,135.40
  4. Step 4: Simplify right side
    20,118,504,859.20x = 207,282,689,841,823,809,536
  5. Step 5: Solve for x
    x = 207,282,689,841,823,809,536/20,118,504,859.20
  6. Step 6: Final answer
    x = 10,303,086,203.10

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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.