Home / 489,996,086.65-676,209,909.23-281,190,424.57

Finding the Fourth Proportional to 489,996,086.65, 676,209,909.23 and 281,190,424.57

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Solution

The fourth proportional to 489,996,086.65, 676,209,909.23 and 281,190,424.57 is: 388,051,571.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,996,086.65 : 676,209,909.23 = 281,190,424.57 : x
  2. Step 2: Convert to fraction form
    489,996,086.65/676,209,909.23 = 281,190,424.57/x
  3. Step 3: Cross multiply
    489,996,086.65x = 676,209,909.23 × 281,190,424.57
  4. Step 4: Simplify right side
    489,996,086.65x = 190,143,751,473,418,912
  5. Step 5: Solve for x
    x = 190,143,751,473,418,912/489,996,086.65
  6. Step 6: Final answer
    x = 388,051,571.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.