Home / 538,269,642.82-742,811,992.59-290,750,999.50

Finding the Fourth Proportional to 538,269,642.82, 742,811,992.59 and 290,750,999.50

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Solution

The fourth proportional to 538,269,642.82, 742,811,992.59 and 290,750,999.50 is: 401,236,317.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,269,642.82 : 742,811,992.59 = 290,750,999.50 : x
  2. Step 2: Convert to fraction form
    538,269,642.82/742,811,992.59 = 290,750,999.50/x
  3. Step 3: Cross multiply
    538,269,642.82x = 742,811,992.59 × 290,750,999.50
  4. Step 4: Simplify right side
    538,269,642.82x = 215,973,329,286,129,088
  5. Step 5: Solve for x
    x = 215,973,329,286,129,088/538,269,642.82
  6. Step 6: Final answer
    x = 401,236,317.46

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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.