Home / 305,703,036,922.16-421,871,469,637.74-168,522,852,033.78

Finding the Fourth Proportional to 305,703,036,922.16, 421,871,469,637.74 and 168,522,852,033.78

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Solution

The fourth proportional to 305,703,036,922.16, 421,871,469,637.74 and 168,522,852,033.78 is: 232,562,240,698.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,703,036,922.16 : 421,871,469,637.74 = 168,522,852,033.78 : x
  2. Step 2: Convert to fraction form
    305,703,036,922.16/421,871,469,637.74 = 168,522,852,033.78/x
  3. Step 3: Cross multiply
    305,703,036,922.16x = 421,871,469,637.74 × 168,522,852,033.78
  4. Step 4: Simplify right side
    305,703,036,922.16x = 71,094,983,255,034,171,490,304
  5. Step 5: Solve for x
    x = 71,094,983,255,034,171,490,304/305,703,036,922.16
  6. Step 6: Final answer
    x = 232,562,240,698.76

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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.