Finding the Fourth Proportional to 387,473,039.16, 534,716,967.42 and 211,259,596.56
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Solution
The fourth proportional to 387,473,039.16, 534,716,967.42 and 211,259,596.56 is: 291,540,518.68
Step by Step Solution
- Step 1: Write the proportion equation
387,473,039.16 : 534,716,967.42 = 211,259,596.56 : x - Step 2: Convert to fraction form
387,473,039.16/534,716,967.42 = 211,259,596.56/x - Step 3: Cross multiply
387,473,039.16x = 534,716,967.42 × 211,259,596.56 - Step 4: Simplify right side
387,473,039.16x = 112,964,090,810,935,872 - Step 5: Solve for x
x = 112,964,090,810,935,872/387,473,039.16 - Step 6: Final answer
x = 291,540,518.68
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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.