Finding the Fourth Proportional to 228,811,739.40, 315,746,791.74 and 124,388,897.31
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Solution
The fourth proportional to 228,811,739.40, 315,746,791.74 and 124,388,897.31 is: 171,649,388.95
Step by Step Solution
- Step 1: Write the proportion equation
228,811,739.40 : 315,746,791.74 = 124,388,897.31 : x - Step 2: Convert to fraction form
228,811,739.40/315,746,791.74 = 124,388,897.31/x - Step 3: Cross multiply
228,811,739.40x = 315,746,791.74 × 124,388,897.31 - Step 4: Simplify right side
228,811,739.40x = 39,275,395,253,708,816 - Step 5: Solve for x
x = 39,275,395,253,708,816/228,811,739.40 - Step 6: Final answer
x = 171,649,388.95
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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.