Home / 258,784,515,480.24-388,218,484,806.96-79,710,418,987.92

Finding the Fourth Proportional to 258,784,515,480.24, 388,218,484,806.96 and 79,710,418,987.92

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Solution

The fourth proportional to 258,784,515,480.24, 388,218,484,806.96 and 79,710,418,987.92 is: 119,578,476,422.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,784,515,480.24 : 388,218,484,806.96 = 79,710,418,987.92 : x
  2. Step 2: Convert to fraction form
    258,784,515,480.24/388,218,484,806.96 = 79,710,418,987.92/x
  3. Step 3: Cross multiply
    258,784,515,480.24x = 388,218,484,806.96 × 79,710,418,987.92
  4. Step 4: Simplify right side
    258,784,515,480.24x = 30,945,058,082,818,237,661,184
  5. Step 5: Solve for x
    x = 30,945,058,082,818,237,661,184/258,784,515,480.24
  6. Step 6: Final answer
    x = 119,578,476,422.33

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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.