Finding the Fourth Proportional to 127,970,175,939.13, 176,531,889,453.92 and 79,125,382,680.93
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Solution
The fourth proportional to 127,970,175,939.13, 176,531,889,453.92 and 79,125,382,680.93 is: 109,151,630,103.82
Step by Step Solution
- Step 1: Write the proportion equation
127,970,175,939.13 : 176,531,889,453.92 = 79,125,382,680.93 : x - Step 2: Convert to fraction form
127,970,175,939.13/176,531,889,453.92 = 79,125,382,680.93/x - Step 3: Cross multiply
127,970,175,939.13x = 176,531,889,453.92 × 79,125,382,680.93 - Step 4: Simplify right side
127,970,175,939.13x = 13,968,153,308,429,050,445,824 - Step 5: Solve for x
x = 13,968,153,308,429,050,445,824/127,970,175,939.13 - Step 6: Final answer
x = 109,151,630,103.82
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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.