Finding the Fourth Proportional to 137,730,799.70, 206,596,199.55 and 121,102,601.30
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Solution
The fourth proportional to 137,730,799.70, 206,596,199.55 and 121,102,601.30 is: 181,653,901.95
Step by Step Solution
- Step 1: Write the proportion equation
137,730,799.70 : 206,596,199.55 = 121,102,601.30 : x - Step 2: Convert to fraction form
137,730,799.70/206,596,199.55 = 121,102,601.30/x - Step 3: Cross multiply
137,730,799.70x = 206,596,199.55 × 121,102,601.30 - Step 4: Simplify right side
137,730,799.70x = 25,019,337,184,198,892 - Step 5: Solve for x
x = 25,019,337,184,198,892/137,730,799.70 - Step 6: Final answer
x = 181,653,901.95
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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.