Home / 215,012,969.32-296,743,087.96-122,207,427.50

Finding the Fourth Proportional to 215,012,969.32, 296,743,087.96 and 122,207,427.50

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Solution

The fourth proportional to 215,012,969.32, 296,743,087.96 and 122,207,427.50 is: 168,660,567.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,012,969.32 : 296,743,087.96 = 122,207,427.50 : x
  2. Step 2: Convert to fraction form
    215,012,969.32/296,743,087.96 = 122,207,427.50/x
  3. Step 3: Cross multiply
    215,012,969.32x = 296,743,087.96 × 122,207,427.50
  4. Step 4: Simplify right side
    215,012,969.32x = 36,264,209,407,997,824
  5. Step 5: Solve for x
    x = 36,264,209,407,997,824/215,012,969.32
  6. Step 6: Final answer
    x = 168,660,567.42

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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.