Finding the Fourth Proportional to 145,968,083.48, 201,436,487.34 and 78,987,041.84
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Solution
The fourth proportional to 145,968,083.48, 201,436,487.34 and 78,987,041.84 is: 109,002,405.69
Step by Step Solution
- Step 1: Write the proportion equation
145,968,083.48 : 201,436,487.34 = 78,987,041.84 : x - Step 2: Convert to fraction form
145,968,083.48/201,436,487.34 = 78,987,041.84/x - Step 3: Cross multiply
145,968,083.48x = 201,436,487.34 × 78,987,041.84 - Step 4: Simplify right side
145,968,083.48x = 15,910,872,253,627,212 - Step 5: Solve for x
x = 15,910,872,253,627,212/145,968,083.48 - Step 6: Final answer
x = 109,002,405.69
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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.