Home / 144,293,216.88-199,119,302.64-78,212,296.35

Finding the Fourth Proportional to 144,293,216.88, 199,119,302.64 and 78,212,296.35

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Solution

The fourth proportional to 144,293,216.88, 199,119,302.64 and 78,212,296.35 is: 107,930,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,293,216.88 : 199,119,302.64 = 78,212,296.35 : x
  2. Step 2: Convert to fraction form
    144,293,216.88/199,119,302.64 = 78,212,296.35/x
  3. Step 3: Cross multiply
    144,293,216.88x = 199,119,302.64 × 78,212,296.35
  4. Step 4: Simplify right side
    144,293,216.88x = 15,573,577,907,085,016
  5. Step 5: Solve for x
    x = 15,573,577,907,085,016/144,293,216.88
  6. Step 6: Final answer
    x = 107,930,076.30

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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.