Finding the Fourth Proportional to 151,389,355.41, 208,917,394.56 and 81,774,736.88
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Solution
The fourth proportional to 151,389,355.41, 208,917,394.56 and 81,774,736.88 is: 112,849,182.31
Step by Step Solution
- Step 1: Write the proportion equation
151,389,355.41 : 208,917,394.56 = 81,774,736.88 : x - Step 2: Convert to fraction form
151,389,355.41/208,917,394.56 = 81,774,736.88/x - Step 3: Cross multiply
151,389,355.41x = 208,917,394.56 × 81,774,736.88 - Step 4: Simplify right side
151,389,355.41x = 17,084,164,968,754,556 - Step 5: Solve for x
x = 17,084,164,968,754,556/151,389,355.41 - Step 6: Final answer
x = 112,849,182.31
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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.