Home / 389,619,651.54-537,668,473.49-211,002,088.98

Finding the Fourth Proportional to 389,619,651.54, 537,668,473.49 and 211,002,088.98

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Solution

The fourth proportional to 389,619,651.54, 537,668,473.49 and 211,002,088.98 is: 291,179,283.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,619,651.54 : 537,668,473.49 = 211,002,088.98 : x
  2. Step 2: Convert to fraction form
    389,619,651.54/537,668,473.49 = 211,002,088.98/x
  3. Step 3: Cross multiply
    389,619,651.54x = 537,668,473.49 × 211,002,088.98
  4. Step 4: Simplify right side
    389,619,651.54x = 113,449,171,084,022,736
  5. Step 5: Solve for x
    x = 113,449,171,084,022,736/389,619,651.54
  6. Step 6: Final answer
    x = 291,179,283.79

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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.