Home / 538,278,086.88-742,824,085.32-290,759,550.48

Finding the Fourth Proportional to 538,278,086.88, 742,824,085.32 and 290,759,550.48

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Solution

The fourth proportional to 538,278,086.88, 742,824,085.32 and 290,759,550.48 is: 401,248,355.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,278,086.88 : 742,824,085.32 = 290,759,550.48 : x
  2. Step 2: Convert to fraction form
    538,278,086.88/742,824,085.32 = 290,759,550.48/x
  3. Step 3: Cross multiply
    538,278,086.88x = 742,824,085.32 × 290,759,550.48
  4. Step 4: Simplify right side
    538,278,086.88x = 215,983,197,133,360,384
  5. Step 5: Solve for x
    x = 215,983,197,133,360,384/538,278,086.88
  6. Step 6: Final answer
    x = 401,248,355.45

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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.