Home / 505,328,490.90-757,992,736.35-308,907,897.30

Finding the Fourth Proportional to 505,328,490.90, 757,992,736.35 and 308,907,897.30

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Solution

The fourth proportional to 505,328,490.90, 757,992,736.35 and 308,907,897.30 is: 463,361,845.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,328,490.90 : 757,992,736.35 = 308,907,897.30 : x
  2. Step 2: Convert to fraction form
    505,328,490.90/757,992,736.35 = 308,907,897.30/x
  3. Step 3: Cross multiply
    505,328,490.90x = 757,992,736.35 × 308,907,897.30
  4. Step 4: Simplify right side
    505,328,490.90x = 234,149,942,354,551,808
  5. Step 5: Solve for x
    x = 234,149,942,354,551,808/505,328,490.90
  6. Step 6: Final answer
    x = 463,361,845.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.