Finding the Fourth Proportional to 142,776,989.68, 197,092,514.96 and 96,430,020.12
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Solution
The fourth proportional to 142,776,989.68, 197,092,514.96 and 96,430,020.12 is: 133,114,132.93
Step by Step Solution
- Step 1: Write the proportion equation
142,776,989.68 : 197,092,514.96 = 96,430,020.12 : x - Step 2: Convert to fraction form
142,776,989.68/197,092,514.96 = 96,430,020.12/x - Step 3: Cross multiply
142,776,989.68x = 197,092,514.96 × 96,430,020.12 - Step 4: Simplify right side
142,776,989.68x = 19,005,635,183,094,204 - Step 5: Solve for x
x = 19,005,635,183,094,204/142,776,989.68 - Step 6: Final answer
x = 133,114,132.93
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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.