Finding the Fourth Proportional to 127,970,175,940.63, 176,531,889,455.99 and 79,125,382,682.43
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Solution
The fourth proportional to 127,970,175,940.63, 176,531,889,455.99 and 79,125,382,682.43 is: 109,151,630,105.89
Step by Step Solution
- Step 1: Write the proportion equation
127,970,175,940.63 : 176,531,889,455.99 = 79,125,382,682.43 : x - Step 2: Convert to fraction form
127,970,175,940.63/176,531,889,455.99 = 79,125,382,682.43/x - Step 3: Cross multiply
127,970,175,940.63x = 176,531,889,455.99 × 79,125,382,682.43 - Step 4: Simplify right side
127,970,175,940.63x = 13,968,153,308,857,637,011,456 - Step 5: Solve for x
x = 13,968,153,308,857,637,011,456/127,970,175,940.63 - Step 6: Final answer
x = 109,151,630,105.89
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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.