Home / 422,934,814.36-634,401,349.22-238,618,619.69

Finding the Fourth Proportional to 422,934,814.36, 634,401,349.22 and 238,618,619.69

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Solution

The fourth proportional to 422,934,814.36, 634,401,349.22 and 238,618,619.69 is: 357,927,437.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,934,814.36 : 634,401,349.22 = 238,618,619.69 : x
  2. Step 2: Convert to fraction form
    422,934,814.36/634,401,349.22 = 238,618,619.69/x
  3. Step 3: Cross multiply
    422,934,814.36x = 634,401,349.22 × 238,618,619.69
  4. Step 4: Simplify right side
    422,934,814.36x = 151,379,974,277,774,592
  5. Step 5: Solve for x
    x = 151,379,974,277,774,592/422,934,814.36
  6. Step 6: Final answer
    x = 357,927,437.37

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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.