Home / 258,787,032-356,834,970.72-211,596,872.64

Finding the Fourth Proportional to 258,787,032, 356,834,970.72 and 211,596,872.64

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Solution

The fourth proportional to 258,787,032, 356,834,970.72 and 211,596,872.64 is: 291,765,639.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,787,032 : 356,834,970.72 = 211,596,872.64 : x
  2. Step 2: Convert to fraction form
    258,787,032/356,834,970.72 = 211,596,872.64/x
  3. Step 3: Cross multiply
    258,787,032x = 356,834,970.72 × 211,596,872.64
  4. Step 4: Simplify right side
    258,787,032x = 75,505,163,852,937,968
  5. Step 5: Solve for x
    x = 75,505,163,852,937,968/258,787,032
  6. Step 6: Final answer
    x = 291,765,639.37

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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.