Home / 386,639,333.64-579,779,193.42-140,824,842.84

Finding the Fourth Proportional to 386,639,333.64, 579,779,193.42 and 140,824,842.84

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Solution

The fourth proportional to 386,639,333.64, 579,779,193.42 and 140,824,842.84 is: 211,171,773.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,639,333.64 : 579,779,193.42 = 140,824,842.84 : x
  2. Step 2: Convert to fraction form
    386,639,333.64/579,779,193.42 = 140,824,842.84/x
  3. Step 3: Cross multiply
    386,639,333.64x = 579,779,193.42 × 140,824,842.84
  4. Step 4: Simplify right side
    386,639,333.64x = 81,647,313,795,273,456
  5. Step 5: Solve for x
    x = 81,647,313,795,273,456/386,639,333.64
  6. Step 6: Final answer
    x = 211,171,773.51

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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.