Finding the Fourth Proportional to 39,958,253.96, 55,142,388.66 and 21,623,539.96
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Solution
The fourth proportional to 39,958,253.96, 55,142,388.66 and 21,623,539.96 is: 29,840,484.17
Step by Step Solution
- Step 1: Write the proportion equation
39,958,253.96 : 55,142,388.66 = 21,623,539.96 : x - Step 2: Convert to fraction form
39,958,253.96/55,142,388.66 = 21,623,539.96/x - Step 3: Cross multiply
39,958,253.96x = 55,142,388.66 × 21,623,539.96 - Step 4: Simplify right side
39,958,253.96x = 1,192,373,644,679,360.75 - Step 5: Solve for x
x = 1,192,373,644,679,360.75/39,958,253.96 - Step 6: Final answer
x = 29,840,484.17
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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.