Finding the Fourth Proportional to 406,851,192.96, 561,450,680.64 and 221,212,204.80
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Solution
The fourth proportional to 406,851,192.96, 561,450,680.64 and 221,212,204.80 is: 305,270,686.43
Step by Step Solution
- Step 1: Write the proportion equation
406,851,192.96 : 561,450,680.64 = 221,212,204.80 : x - Step 2: Convert to fraction form
406,851,192.96/561,450,680.64 = 221,212,204.80/x - Step 3: Cross multiply
406,851,192.96x = 561,450,680.64 × 221,212,204.80 - Step 4: Simplify right side
406,851,192.96x = 124,199,742,950,835,072 - Step 5: Solve for x
x = 124,199,742,950,835,072/406,851,192.96 - Step 6: Final answer
x = 305,270,686.43
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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.