Finding the Fourth Proportional to 606,476,963.25, 909,816,068.21 and 212,901,766.88
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Solution
The fourth proportional to 606,476,963.25, 909,816,068.21 and 212,901,766.88 is: 319,387,973.81
Step by Step Solution
- Step 1: Write the proportion equation
606,476,963.25 : 909,816,068.21 = 212,901,766.88 : x - Step 2: Convert to fraction form
606,476,963.25/909,816,068.21 = 212,901,766.88/x - Step 3: Cross multiply
606,476,963.25x = 909,816,068.21 × 212,901,766.88 - Step 4: Simplify right side
606,476,963.25x = 193,701,448,452,110,016 - Step 5: Solve for x
x = 193,701,448,452,110,016/606,476,963.25 - Step 6: Final answer
x = 319,387,973.81
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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.