Home / 387,795,093.78-535,322,357.07-260,709,477.18

Finding the Fourth Proportional to 387,795,093.78, 535,322,357.07 and 260,709,477.18

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Solution

The fourth proportional to 387,795,093.78, 535,322,357.07 and 260,709,477.18 is: 359,890,091.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,795,093.78 : 535,322,357.07 = 260,709,477.18 : x
  2. Step 2: Convert to fraction form
    387,795,093.78/535,322,357.07 = 260,709,477.18/x
  3. Step 3: Cross multiply
    387,795,093.78x = 535,322,357.07 × 260,709,477.18
  4. Step 4: Simplify right side
    387,795,093.78x = 139,563,611,834,484,976
  5. Step 5: Solve for x
    x = 139,563,611,834,484,976/387,795,093.78
  6. Step 6: Final answer
    x = 359,890,091.63

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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.