Finding the Fourth Proportional to 213,873,431.28, 295,137,698.68 and 121,051,946.22
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Solution
The fourth proportional to 213,873,431.28, 295,137,698.68 and 121,051,946.22 is: 167,047,363.55
Step by Step Solution
- Step 1: Write the proportion equation
213,873,431.28 : 295,137,698.68 = 121,051,946.22 : x - Step 2: Convert to fraction form
213,873,431.28/295,137,698.68 = 121,051,946.22/x - Step 3: Cross multiply
213,873,431.28x = 295,137,698.68 × 121,051,946.22 - Step 4: Simplify right side
213,873,431.28x = 35,726,992,828,105,924 - Step 5: Solve for x
x = 35,726,992,828,105,924/213,873,431.28 - Step 6: Final answer
x = 167,047,363.55
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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.