Finding the Fourth Proportional to 258,299,866.96, 387,449,829.64 and 104,946,027.28
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Solution
The fourth proportional to 258,299,866.96, 387,449,829.64 and 104,946,027.28 is: 157,419,052.78
Step by Step Solution
- Step 1: Write the proportion equation
258,299,866.96 : 387,449,829.64 = 104,946,027.28 : x - Step 2: Convert to fraction form
258,299,866.96/387,449,829.64 = 104,946,027.28/x - Step 3: Cross multiply
258,299,866.96x = 387,449,829.64 × 104,946,027.28 - Step 4: Simplify right side
258,299,866.96x = 40,661,320,391,030,792 - Step 5: Solve for x
x = 40,661,320,391,030,792/258,299,866.96 - Step 6: Final answer
x = 157,419,052.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.