Finding the Fourth Proportional to 329,584,880.58, 455,204,618.97 and 217,057,396.48
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Solution
The fourth proportional to 329,584,880.58, 455,204,618.97 and 217,057,396.48 is: 299,787,809.70
Step by Step Solution
- Step 1: Write the proportion equation
329,584,880.58 : 455,204,618.97 = 217,057,396.48 : x - Step 2: Convert to fraction form
329,584,880.58/455,204,618.97 = 217,057,396.48/x - Step 3: Cross multiply
329,584,880.58x = 455,204,618.97 × 217,057,396.48 - Step 4: Simplify right side
329,584,880.58x = 98,805,529,459,298,624 - Step 5: Solve for x
x = 98,805,529,459,298,624/329,584,880.58 - Step 6: Final answer
x = 299,787,809.70
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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.