Home / 422,934,830.84-634,401,373.80-238,618,636.50

Finding the Fourth Proportional to 422,934,830.84, 634,401,373.80 and 238,618,636.50

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Solution

The fourth proportional to 422,934,830.84, 634,401,373.80 and 238,618,636.50 is: 357,927,462.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,934,830.84 : 634,401,373.80 = 238,618,636.50 : x
  2. Step 2: Convert to fraction form
    422,934,830.84/634,401,373.80 = 238,618,636.50/x
  3. Step 3: Cross multiply
    422,934,830.84x = 634,401,373.80 × 238,618,636.50
  4. Step 4: Simplify right side
    422,934,830.84x = 151,379,990,809,882,816
  5. Step 5: Solve for x
    x = 151,379,990,809,882,816/422,934,830.84
  6. Step 6: Final answer
    x = 357,927,462.51

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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.