Finding the Fourth Proportional to 279,278,143.22, 385,403,836.14 and 161,871,574.55
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Solution
The fourth proportional to 279,278,143.22, 385,403,836.14 and 161,871,574.55 is: 223,382,772.00
Step by Step Solution
- Step 1: Write the proportion equation
279,278,143.22 : 385,403,836.14 = 161,871,574.55 : x - Step 2: Convert to fraction form
279,278,143.22/385,403,836.14 = 161,871,574.55/x - Step 3: Cross multiply
279,278,143.22x = 385,403,836.14 × 161,871,574.55 - Step 4: Simplify right side
279,278,143.22x = 62,385,925,793,601,088 - Step 5: Solve for x
x = 62,385,925,793,601,088/279,278,143.22 - Step 6: Final answer
x = 223,382,772.00
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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.