Finding the Fourth Proportional to 21,670,027.76, 29,903,844.76 and 11,880,257.13
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Solution
The fourth proportional to 21,670,027.76, 29,903,844.76 and 11,880,257.13 is: 16,394,319.79
Step by Step Solution
- Step 1: Write the proportion equation
21,670,027.76 : 29,903,844.76 = 11,880,257.13 : x - Step 2: Convert to fraction form
21,670,027.76/29,903,844.76 = 11,880,257.13/x - Step 3: Cross multiply
21,670,027.76x = 29,903,844.76 × 11,880,257.13 - Step 4: Simplify right side
21,670,027.76x = 355,265,364,894,702.50 - Step 5: Solve for x
x = 355,265,364,894,702.50/21,670,027.76 - Step 6: Final answer
x = 16,394,319.79
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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.