Home / 538,278,164.40-742,824,192.36-290,759,628

Finding the Fourth Proportional to 538,278,164.40, 742,824,192.36 and 290,759,628

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Solution

The fourth proportional to 538,278,164.40, 742,824,192.36 and 290,759,628 is: 401,248,462.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,278,164.40 : 742,824,192.36 = 290,759,628 : x
  2. Step 2: Convert to fraction form
    538,278,164.40/742,824,192.36 = 290,759,628/x
  3. Step 3: Cross multiply
    538,278,164.40x = 742,824,192.36 × 290,759,628
  4. Step 4: Simplify right side
    538,278,164.40x = 215,983,285,839,994,048
  5. Step 5: Solve for x
    x = 215,983,285,839,994,048/538,278,164.40
  6. Step 6: Final answer
    x = 401,248,462.46

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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.