Finding the Fourth Proportional to 207,199,789.60, 310,911,658.80 and 92,202,080.80
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Solution
The fourth proportional to 207,199,789.60, 310,911,658.80 and 92,202,080.80 is: 138,352,948.82
Step by Step Solution
- Step 1: Write the proportion equation
207,199,789.60 : 310,911,658.80 = 92,202,080.80 : x - Step 2: Convert to fraction form
207,199,789.60/310,911,658.80 = 92,202,080.80/x - Step 3: Cross multiply
207,199,789.60x = 310,911,658.80 × 92,202,080.80 - Step 4: Simplify right side
207,199,789.60x = 28,666,701,886,339,632 - Step 5: Solve for x
x = 28,666,701,886,339,632/207,199,789.60 - Step 6: Final answer
x = 138,352,948.82
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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.