Home / 285,081,382.98-393,412,308.55-154,701,190.98

Finding the Fourth Proportional to 285,081,382.98, 393,412,308.55 and 154,701,190.98

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Solution

The fourth proportional to 285,081,382.98, 393,412,308.55 and 154,701,190.98 is: 213,487,643.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,081,382.98 : 393,412,308.55 = 154,701,190.98 : x
  2. Step 2: Convert to fraction form
    285,081,382.98/393,412,308.55 = 154,701,190.98/x
  3. Step 3: Cross multiply
    285,081,382.98x = 393,412,308.55 × 154,701,190.98
  4. Step 4: Simplify right side
    285,081,382.98x = 60,861,352,678,489,480
  5. Step 5: Solve for x
    x = 60,861,352,678,489,480/285,081,382.98
  6. Step 6: Final answer
    x = 213,487,643.57

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Why These Related Problems?

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