Finding the Fourth Proportional to 258,863,597.09, 388,349,929.41 and 83,972,975.19
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Solution
The fourth proportional to 258,863,597.09, 388,349,929.41 and 83,972,975.19 is: 125,977,153.04
Step by Step Solution
- Step 1: Write the proportion equation
258,863,597.09 : 388,349,929.41 = 83,972,975.19 : x - Step 2: Convert to fraction form
258,863,597.09/388,349,929.41 = 83,972,975.19/x - Step 3: Cross multiply
258,863,597.09x = 388,349,929.41 × 83,972,975.19 - Step 4: Simplify right side
258,863,597.09x = 32,610,898,987,384,184 - Step 5: Solve for x
x = 32,610,898,987,384,184/258,863,597.09 - Step 6: Final answer
x = 125,977,153.04
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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.