Home / 305,303,016,859.20-457,954,525,288.80-278,855,111,476.80

Finding the Fourth Proportional to 305,303,016,859.20, 457,954,525,288.80 and 278,855,111,476.80

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Solution

The fourth proportional to 305,303,016,859.20, 457,954,525,288.80 and 278,855,111,476.80 is: 418,282,667,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,303,016,859.20 : 457,954,525,288.80 = 278,855,111,476.80 : x
  2. Step 2: Convert to fraction form
    305,303,016,859.20/457,954,525,288.80 = 278,855,111,476.80/x
  3. Step 3: Cross multiply
    305,303,016,859.20x = 457,954,525,288.80 × 278,855,111,476.80
  4. Step 4: Simplify right side
    305,303,016,859.20x = 127,702,960,200,713,334,947,840
  5. Step 5: Solve for x
    x = 127,702,960,200,713,334,947,840/305,303,016,859.20
  6. Step 6: Final answer
    x = 418,282,667,215.20

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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.