Finding the Fourth Proportional to 70,919,889.42, 97,865,229.56 and 41,148,231.09
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Solution
The fourth proportional to 70,919,889.42, 97,865,229.56 and 41,148,231.09 is: 56,782,111.68
Step by Step Solution
- Step 1: Write the proportion equation
70,919,889.42 : 97,865,229.56 = 41,148,231.09 : x - Step 2: Convert to fraction form
70,919,889.42/97,865,229.56 = 41,148,231.09/x - Step 3: Cross multiply
70,919,889.42x = 97,865,229.56 × 41,148,231.09 - Step 4: Simplify right side
70,919,889.42x = 4,026,981,081,405,038.50 - Step 5: Solve for x
x = 4,026,981,081,405,038.50/70,919,889.42 - Step 6: Final answer
x = 56,782,111.68
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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.