Finding the Fourth Proportional to 120,399,548.08, 166,153,565.10 and 68,199,422.08
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Solution
The fourth proportional to 120,399,548.08, 166,153,565.10 and 68,199,422.08 is: 94,116,442.27
Step by Step Solution
- Step 1: Write the proportion equation
120,399,548.08 : 166,153,565.10 = 68,199,422.08 : x - Step 2: Convert to fraction form
120,399,548.08/166,153,565.10 = 68,199,422.08/x - Step 3: Cross multiply
120,399,548.08x = 166,153,565.10 × 68,199,422.08 - Step 4: Simplify right side
120,399,548.08x = 11,331,577,116,351,656 - Step 5: Solve for x
x = 11,331,577,116,351,656/120,399,548.08 - Step 6: Final answer
x = 94,116,442.27
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1.5x scale
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.