Finding the Fourth Proportional to 215,759,725.60, 323,639,588.40 and 212,176,544.80
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Solution
The fourth proportional to 215,759,725.60, 323,639,588.40 and 212,176,544.80 is: 318,264,817.20
Step by Step Solution
- Step 1: Write the proportion equation
215,759,725.60 : 323,639,588.40 = 212,176,544.80 : x - Step 2: Convert to fraction form
215,759,725.60/323,639,588.40 = 212,176,544.80/x - Step 3: Cross multiply
215,759,725.60x = 323,639,588.40 × 212,176,544.80 - Step 4: Simplify right side
215,759,725.60x = 68,668,729,627,206,160 - Step 5: Solve for x
x = 68,668,729,627,206,160/215,759,725.60 - Step 6: Final answer
x = 318,264,817.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.