Home / 13,419,145,379.70-18,518,476,558.23-7,397,518,497.48

Finding the Fourth Proportional to 13,419,145,379.70, 18,518,476,558.23 and 7,397,518,497.48

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Solution

The fourth proportional to 13,419,145,379.70, 18,518,476,558.23 and 7,397,518,497.48 is: 10,208,606,361.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,145,379.70 : 18,518,476,558.23 = 7,397,518,497.48 : x
  2. Step 2: Convert to fraction form
    13,419,145,379.70/18,518,476,558.23 = 7,397,518,497.48/x
  3. Step 3: Cross multiply
    13,419,145,379.70x = 18,518,476,558.23 × 7,397,518,497.48
  4. Step 4: Simplify right side
    13,419,145,379.70x = 136,990,772,884,656,177,152
  5. Step 5: Solve for x
    x = 136,990,772,884,656,177,152/13,419,145,379.70
  6. Step 6: Final answer
    x = 10,208,606,361.17

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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.