Finding the Fourth Proportional to 387,158,094.36, 534,163,553.74 and 230,399,533.08
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Solution
The fourth proportional to 387,158,094.36, 534,163,553.74 and 230,399,533.08 is: 317,883,146.87
Step by Step Solution
- Step 1: Write the proportion equation
387,158,094.36 : 534,163,553.74 = 230,399,533.08 : x - Step 2: Convert to fraction form
387,158,094.36/534,163,553.74 = 230,399,533.08/x - Step 3: Cross multiply
387,158,094.36x = 534,163,553.74 × 230,399,533.08 - Step 4: Simplify right side
387,158,094.36x = 123,071,033,370,049,504 - Step 5: Solve for x
x = 123,071,033,370,049,504/387,158,094.36 - Step 6: Final answer
x = 317,883,146.87
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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.