Finding the Fourth Proportional to 258,423,381.93, 387,589,047.48 and 102,964,161.09
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Solution
The fourth proportional to 258,423,381.93, 387,589,047.48 and 102,964,161.09 is: 154,427,903.63
Step by Step Solution
- Step 1: Write the proportion equation
258,423,381.93 : 387,589,047.48 = 102,964,161.09 : x - Step 2: Convert to fraction form
258,423,381.93/387,589,047.48 = 102,964,161.09/x - Step 3: Cross multiply
258,423,381.93x = 387,589,047.48 × 102,964,161.09 - Step 4: Simplify right side
258,423,381.93x = 39,907,781,121,450,384 - Step 5: Solve for x
x = 39,907,781,121,450,384/258,423,381.93 - Step 6: Final answer
x = 154,427,903.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.