Finding the Fourth Proportional to 268,931,173.26, 371,121,246.57 and 149,858,784.12
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Solution
The fourth proportional to 268,931,173.26, 371,121,246.57 and 149,858,784.12 is: 206,803,019.89
Step by Step Solution
- Step 1: Write the proportion equation
268,931,173.26 : 371,121,246.57 = 149,858,784.12 : x - Step 2: Convert to fraction form
268,931,173.26/371,121,246.57 = 149,858,784.12/x - Step 3: Cross multiply
268,931,173.26x = 371,121,246.57 × 149,858,784.12 - Step 4: Simplify right side
268,931,173.26x = 55,615,778,772,078,920 - Step 5: Solve for x
x = 55,615,778,772,078,920/268,931,173.26 - Step 6: Final answer
x = 206,803,019.89
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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.