Finding the Fourth Proportional to 258,602,392.80, 356,878,860.84 and 141,135,262.02
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Solution
The fourth proportional to 258,602,392.80, 356,878,860.84 and 141,135,262.02 is: 194,770,786.88
Step by Step Solution
- Step 1: Write the proportion equation
258,602,392.80 : 356,878,860.84 = 141,135,262.02 : x - Step 2: Convert to fraction form
258,602,392.80/356,878,860.84 = 141,135,262.02/x - Step 3: Cross multiply
258,602,392.80x = 356,878,860.84 × 141,135,262.02 - Step 4: Simplify right side
258,602,392.80x = 50,368,191,534,052,520 - Step 5: Solve for x
x = 50,368,191,534,052,520/258,602,392.80 - Step 6: Final answer
x = 194,770,786.88
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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.