Finding the Fourth Proportional to 268,931,171.76, 371,121,244.50 and 149,858,782.62
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Solution
The fourth proportional to 268,931,171.76, 371,121,244.50 and 149,858,782.62 is: 206,803,017.82
Step by Step Solution
- Step 1: Write the proportion equation
268,931,171.76 : 371,121,244.50 = 149,858,782.62 : x - Step 2: Convert to fraction form
268,931,171.76/371,121,244.50 = 149,858,782.62/x - Step 3: Cross multiply
268,931,171.76x = 371,121,244.50 × 149,858,782.62 - Step 4: Simplify right side
268,931,171.76x = 55,615,777,905,189,376 - Step 5: Solve for x
x = 55,615,777,905,189,376/268,931,171.76 - Step 6: Final answer
x = 206,803,017.82
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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.