Finding the Fourth Proportional to 210,502,112.93, 290,460,644.03 and 121,176,790.63
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Solution
The fourth proportional to 210,502,112.93, 290,460,644.03 and 121,176,790.63 is: 167,205,393.60
Step by Step Solution
- Step 1: Write the proportion equation
210,502,112.93 : 290,460,644.03 = 121,176,790.63 : x - Step 2: Convert to fraction form
210,502,112.93/290,460,644.03 = 121,176,790.63/x - Step 3: Cross multiply
210,502,112.93x = 290,460,644.03 × 121,176,790.63 - Step 4: Simplify right side
210,502,112.93x = 35,197,088,645,820,080 - Step 5: Solve for x
x = 35,197,088,645,820,080/210,502,112.93 - Step 6: Final answer
x = 167,205,393.60
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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.