Finding the Fourth Proportional to 408,766,292.58, 612,922,587.03 and 135,988,152.42
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Solution
The fourth proportional to 408,766,292.58, 612,922,587.03 and 135,988,152.42 is: 203,906,759.68
Step by Step Solution
- Step 1: Write the proportion equation
408,766,292.58 : 612,922,587.03 = 135,988,152.42 : x - Step 2: Convert to fraction form
408,766,292.58/612,922,587.03 = 135,988,152.42/x - Step 3: Cross multiply
408,766,292.58x = 612,922,587.03 × 135,988,152.42 - Step 4: Simplify right side
408,766,292.58x = 83,350,210,186,696,336 - Step 5: Solve for x
x = 83,350,210,186,696,336/408,766,292.58 - Step 6: Final answer
x = 203,906,759.68
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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.