Home / 422,934,816.56-634,401,352.52-238,618,621.88

Finding the Fourth Proportional to 422,934,816.56, 634,401,352.52 and 238,618,621.88

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Solution

The fourth proportional to 422,934,816.56, 634,401,352.52 and 238,618,621.88 is: 357,927,440.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,934,816.56 : 634,401,352.52 = 238,618,621.88 : x
  2. Step 2: Convert to fraction form
    422,934,816.56/634,401,352.52 = 238,618,621.88/x
  3. Step 3: Cross multiply
    422,934,816.56x = 634,401,352.52 × 238,618,621.88
  4. Step 4: Simplify right side
    422,934,816.56x = 151,379,976,457,130,464
  5. Step 5: Solve for x
    x = 151,379,976,457,130,464/422,934,816.56
  6. Step 6: Final answer
    x = 357,927,440.66

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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.