Finding the Fourth Proportional to 213,873,426.29, 295,137,691.79 and 121,051,941.23
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Solution
The fourth proportional to 213,873,426.29, 295,137,691.79 and 121,051,941.23 is: 167,047,356.65
Step by Step Solution
- Step 1: Write the proportion equation
213,873,426.29 : 295,137,691.79 = 121,051,941.23 : x - Step 2: Convert to fraction form
213,873,426.29/295,137,691.79 = 121,051,941.23/x - Step 3: Cross multiply
213,873,426.29x = 295,137,691.79 × 121,051,941.23 - Step 4: Simplify right side
213,873,426.29x = 35,726,990,519,239,988 - Step 5: Solve for x
x = 35,726,990,519,239,988/213,873,426.29 - Step 6: Final answer
x = 167,047,356.65
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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.