Finding the Fourth Proportional to 276,840,927.20, 415,261,390.80 and 133,513,695.20
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Solution
The fourth proportional to 276,840,927.20, 415,261,390.80 and 133,513,695.20 is: 200,270,542.80
Step by Step Solution
- Step 1: Write the proportion equation
276,840,927.20 : 415,261,390.80 = 133,513,695.20 : x - Step 2: Convert to fraction form
276,840,927.20/415,261,390.80 = 133,513,695.20/x - Step 3: Cross multiply
276,840,927.20x = 415,261,390.80 × 133,513,695.20 - Step 4: Simplify right side
276,840,927.20x = 55,443,082,759,599,288 - Step 5: Solve for x
x = 55,443,082,759,599,288/276,840,927.20 - Step 6: Final answer
x = 200,270,542.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.