Home / 215,012,969.32-296,743,087.97-122,207,427.49

Finding the Fourth Proportional to 215,012,969.32, 296,743,087.97 and 122,207,427.49

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Solution

The fourth proportional to 215,012,969.32, 296,743,087.97 and 122,207,427.49 is: 168,660,567.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,012,969.32 : 296,743,087.97 = 122,207,427.49 : x
  2. Step 2: Convert to fraction form
    215,012,969.32/296,743,087.97 = 122,207,427.49/x
  3. Step 3: Cross multiply
    215,012,969.32x = 296,743,087.97 × 122,207,427.49
  4. Step 4: Simplify right side
    215,012,969.32x = 36,264,209,406,252,472
  5. Step 5: Solve for x
    x = 36,264,209,406,252,472/215,012,969.32
  6. Step 6: Final answer
    x = 168,660,567.41

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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.