Home / 13,419,145,381.70-18,518,476,560.99-7,397,518,499.48

Finding the Fourth Proportional to 13,419,145,381.70, 18,518,476,560.99 and 7,397,518,499.48

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Solution

The fourth proportional to 13,419,145,381.70, 18,518,476,560.99 and 7,397,518,499.48 is: 10,208,606,363.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,145,381.70 : 18,518,476,560.99 = 7,397,518,499.48 : x
  2. Step 2: Convert to fraction form
    13,419,145,381.70/18,518,476,560.99 = 7,397,518,499.48/x
  3. Step 3: Cross multiply
    13,419,145,381.70x = 18,518,476,560.99 × 7,397,518,499.48
  4. Step 4: Simplify right side
    13,419,145,381.70x = 136,990,772,942,110,294,016
  5. Step 5: Solve for x
    x = 136,990,772,942,110,294,016/13,419,145,381.70
  6. Step 6: Final answer
    x = 10,208,606,363.93

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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.