Finding the Fourth Proportional to 429,512,657.51, 644,264,869.66 and 254,509,718.65
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Solution
The fourth proportional to 429,512,657.51, 644,264,869.66 and 254,509,718.65 is: 381,762,138.66
Step by Step Solution
- Step 1: Write the proportion equation
429,512,657.51 : 644,264,869.66 = 254,509,718.65 : x - Step 2: Convert to fraction form
429,512,657.51/644,264,869.66 = 254,509,718.65/x - Step 3: Cross multiply
429,512,657.51x = 644,264,869.66 × 254,509,718.65 - Step 4: Simplify right side
429,512,657.51x = 163,971,670,713,245,504 - Step 5: Solve for x
x = 163,971,670,713,245,504/429,512,657.51 - Step 6: Final answer
x = 381,762,138.66
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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.