Home / 779,288,467.47-1,075,417,745.31-422,056,260.51

Finding the Fourth Proportional to 779,288,467.47, 1,075,417,745.31 and 422,056,260.51

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Solution

The fourth proportional to 779,288,467.47, 1,075,417,745.31 and 422,056,260.51 is: 582,437,455.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,288,467.47 : 1,075,417,745.31 = 422,056,260.51 : x
  2. Step 2: Convert to fraction form
    779,288,467.47/1,075,417,745.31 = 422,056,260.51/x
  3. Step 3: Cross multiply
    779,288,467.47x = 1,075,417,745.31 × 422,056,260.51
  4. Step 4: Simplify right side
    779,288,467.47x = 453,886,792,074,116,096
  5. Step 5: Solve for x
    x = 453,886,792,074,116,096/779,288,467.47
  6. Step 6: Final answer
    x = 582,437,455.47

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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.