Finding the Fourth Proportional to 1,253,166,329.25, 1,728,992,400.80 and 751,191,957.99
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Solution
The fourth proportional to 1,253,166,329.25, 1,728,992,400.80 and 751,191,957.99 is: 1,036,418,834.90
Step by Step Solution
- Step 1: Write the proportion equation
1,253,166,329.25 : 1,728,992,400.80 = 751,191,957.99 : x - Step 2: Convert to fraction form
1,253,166,329.25/1,728,992,400.80 = 751,191,957.99/x - Step 3: Cross multiply
1,253,166,329.25x = 1,728,992,400.80 × 751,191,957.99 - Step 4: Simplify right side
1,253,166,329.25x = 1,298,805,186,903,026,944 - Step 5: Solve for x
x = 1,298,805,186,903,026,944/1,253,166,329.25 - Step 6: Final answer
x = 1,036,418,834.90
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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.