Finding the Fourth Proportional to 206,630,749.80, 309,946,124.70 and 115,931,485.80
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Solution
The fourth proportional to 206,630,749.80, 309,946,124.70 and 115,931,485.80 is: 173,897,228.70
Step by Step Solution
- Step 1: Write the proportion equation
206,630,749.80 : 309,946,124.70 = 115,931,485.80 : x - Step 2: Convert to fraction form
206,630,749.80/309,946,124.70 = 115,931,485.80/x - Step 3: Cross multiply
206,630,749.80x = 309,946,124.70 × 115,931,485.80 - Step 4: Simplify right side
206,630,749.80x = 35,932,514,754,423,076 - Step 5: Solve for x
x = 35,932,514,754,423,076/206,630,749.80 - Step 6: Final answer
x = 173,897,228.70
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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.