Home / 779,376,076.20-1,075,530,413.72-422,134,965.22

Finding the Fourth Proportional to 779,376,076.20, 1,075,530,413.72 and 422,134,965.22

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Solution

The fourth proportional to 779,376,076.20, 1,075,530,413.72 and 422,134,965.22 is: 582,541,609.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,376,076.20 : 1,075,530,413.72 = 422,134,965.22 : x
  2. Step 2: Convert to fraction form
    779,376,076.20/1,075,530,413.72 = 422,134,965.22/x
  3. Step 3: Cross multiply
    779,376,076.20x = 1,075,530,413.72 × 422,134,965.22
  4. Step 4: Simplify right side
    779,376,076.20x = 454,018,993,788,744,448
  5. Step 5: Solve for x
    x = 454,018,993,788,744,448/779,376,076.20
  6. Step 6: Final answer
    x = 582,541,609.44

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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.