Home / 505,320,423.90-757,980,635.85-308,899,830.30

Finding the Fourth Proportional to 505,320,423.90, 757,980,635.85 and 308,899,830.30

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Solution

The fourth proportional to 505,320,423.90, 757,980,635.85 and 308,899,830.30 is: 463,349,745.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,320,423.90 : 757,980,635.85 = 308,899,830.30 : x
  2. Step 2: Convert to fraction form
    505,320,423.90/757,980,635.85 = 308,899,830.30/x
  3. Step 3: Cross multiply
    505,320,423.90x = 757,980,635.85 × 308,899,830.30
  4. Step 4: Simplify right side
    505,320,423.90x = 234,140,089,784,751,104
  5. Step 5: Solve for x
    x = 234,140,089,784,751,104/505,320,423.90
  6. Step 6: Final answer
    x = 463,349,745.45

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Similar ratio
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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.