Home / 678,149,213,067.30-1,017,422,316,852.30-218,674,642,413.30

Finding the Fourth Proportional to 678,149,213,067.30, 1,017,422,316,852.30 and 218,674,642,413.30

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Solution

The fourth proportional to 678,149,213,067.30, 1,017,422,316,852.30 and 218,674,642,413.30 is: 328,075,970,647.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,149,213,067.30 : 1,017,422,316,852.30 = 218,674,642,413.30 : x
  2. Step 2: Convert to fraction form
    678,149,213,067.30/1,017,422,316,852.30 = 218,674,642,413.30/x
  3. Step 3: Cross multiply
    678,149,213,067.30x = 1,017,422,316,852.30 × 218,674,642,413.30
  4. Step 4: Simplify right side
    678,149,213,067.30x = 222,484,461,320,987,916,369,920
  5. Step 5: Solve for x
    x = 222,484,461,320,987,916,369,920/678,149,213,067.30
  6. Step 6: Final answer
    x = 328,075,970,647.64

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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.