Finding the Fourth Proportional to 211,055,815.13, 291,257,052.48 and 116,976,036.01
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Solution
The fourth proportional to 211,055,815.13, 291,257,052.48 and 116,976,036.01 is: 161,426,944.99
Step by Step Solution
- Step 1: Write the proportion equation
211,055,815.13 : 291,257,052.48 = 116,976,036.01 : x - Step 2: Convert to fraction form
211,055,815.13/291,257,052.48 = 116,976,036.01/x - Step 3: Cross multiply
211,055,815.13x = 291,257,052.48 × 116,976,036.01 - Step 4: Simplify right side
211,055,815.13x = 34,070,095,458,883,448 - Step 5: Solve for x
x = 34,070,095,458,883,448/211,055,815.13 - Step 6: Final answer
x = 161,426,944.99
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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.