Home / 456,480,989.67-629,890,621.54-255,548,866.78

Finding the Fourth Proportional to 456,480,989.67, 629,890,621.54 and 255,548,866.78

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Solution

The fourth proportional to 456,480,989.67, 629,890,621.54 and 255,548,866.78 is: 352,627,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,480,989.67 : 629,890,621.54 = 255,548,866.78 : x
  2. Step 2: Convert to fraction form
    456,480,989.67/629,890,621.54 = 255,548,866.78/x
  3. Step 3: Cross multiply
    456,480,989.67x = 629,890,621.54 × 255,548,866.78
  4. Step 4: Simplify right side
    456,480,989.67x = 160,967,834,531,809,056
  5. Step 5: Solve for x
    x = 160,967,834,531,809,056/456,480,989.67
  6. Step 6: Final answer
    x = 352,627,684.78

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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.