Finding the Fourth Proportional to 218,318,405.62, 301,305,818.82 and 124,255,423.84
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Solution
The fourth proportional to 218,318,405.62, 301,305,818.82 and 124,255,423.84 is: 171,487,521.25
Step by Step Solution
- Step 1: Write the proportion equation
218,318,405.62 : 301,305,818.82 = 124,255,423.84 : x - Step 2: Convert to fraction form
218,318,405.62/301,305,818.82 = 124,255,423.84/x - Step 3: Cross multiply
218,318,405.62x = 301,305,818.82 × 124,255,423.84 - Step 4: Simplify right side
218,318,405.62x = 37,438,882,222,937,352 - Step 5: Solve for x
x = 37,438,882,222,937,352/218,318,405.62 - Step 6: Final answer
x = 171,487,521.25
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1.5x scale
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.