Finding the Fourth Proportional to 168,395,403.94, 232,385,657.43 and 91,133,067.94
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Solution
The fourth proportional to 168,395,403.94, 232,385,657.43 and 91,133,067.94 is: 125,763,633.75
Step by Step Solution
- Step 1: Write the proportion equation
168,395,403.94 : 232,385,657.43 = 91,133,067.94 : x - Step 2: Convert to fraction form
168,395,403.94/232,385,657.43 = 91,133,067.94/x - Step 3: Cross multiply
168,395,403.94x = 232,385,657.43 × 91,133,067.94 - Step 4: Simplify right side
168,395,403.94x = 21,178,017,906,610,540 - Step 5: Solve for x
x = 21,178,017,906,610,540/168,395,403.94 - Step 6: Final answer
x = 125,763,633.75
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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.