Finding the Fourth Proportional to 490,651,783.08, 677,101,565.69 and 267,638,324.70
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Solution
The fourth proportional to 490,651,783.08, 677,101,565.69 and 267,638,324.70 is: 369,342,036.34
Step by Step Solution
- Step 1: Write the proportion equation
490,651,783.08 : 677,101,565.69 = 267,638,324.70 : x - Step 2: Convert to fraction form
490,651,783.08/677,101,565.69 = 267,638,324.70/x - Step 3: Cross multiply
490,651,783.08x = 677,101,565.69 × 267,638,324.70 - Step 4: Simplify right side
490,651,783.08x = 181,218,328,695,223,200 - Step 5: Solve for x
x = 181,218,328,695,223,200/490,651,783.08 - Step 6: Final answer
x = 369,342,036.34
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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.