Finding the Fourth Proportional to 137,730,797.20, 206,596,195.80 and 121,102,598.80
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Solution
The fourth proportional to 137,730,797.20, 206,596,195.80 and 121,102,598.80 is: 181,653,898.20
Step by Step Solution
- Step 1: Write the proportion equation
137,730,797.20 : 206,596,195.80 = 121,102,598.80 : x - Step 2: Convert to fraction form
137,730,797.20/206,596,195.80 = 121,102,598.80/x - Step 3: Cross multiply
137,730,797.20x = 206,596,195.80 × 121,102,598.80 - Step 4: Simplify right side
137,730,797.20x = 25,019,336,213,573,644 - Step 5: Solve for x
x = 25,019,336,213,573,644/137,730,797.20 - Step 6: Final answer
x = 181,653,898.20
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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.