Finding the Fourth Proportional to 354,824,129.80, 532,236,194.70 and 259,272,641.80
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Solution
The fourth proportional to 354,824,129.80, 532,236,194.70 and 259,272,641.80 is: 388,908,962.70
Step by Step Solution
- Step 1: Write the proportion equation
354,824,129.80 : 532,236,194.70 = 259,272,641.80 : x - Step 2: Convert to fraction form
354,824,129.80/532,236,194.70 = 259,272,641.80/x - Step 3: Cross multiply
354,824,129.80x = 532,236,194.70 × 259,272,641.80 - Step 4: Simplify right side
354,824,129.80x = 137,994,284,261,448,160 - Step 5: Solve for x
x = 137,994,284,261,448,160/354,824,129.80 - Step 6: Final answer
x = 388,908,962.70
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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.