Home / 422,934,807.78-634,401,339.37-238,618,613.10

Finding the Fourth Proportional to 422,934,807.78, 634,401,339.37 and 238,618,613.10

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Solution

The fourth proportional to 422,934,807.78, 634,401,339.37 and 238,618,613.10 is: 357,927,427.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,934,807.78 : 634,401,339.37 = 238,618,613.10 : x
  2. Step 2: Convert to fraction form
    422,934,807.78/634,401,339.37 = 238,618,613.10/x
  3. Step 3: Cross multiply
    422,934,807.78x = 634,401,339.37 × 238,618,613.10
  4. Step 4: Simplify right side
    422,934,807.78x = 151,379,967,749,251,840
  5. Step 5: Solve for x
    x = 151,379,967,749,251,840/422,934,807.78
  6. Step 6: Final answer
    x = 357,927,427.50

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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.