Finding the Fourth Proportional to 81,044,676.48, 121,615,431.24 and 74,451,031.68
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Solution
The fourth proportional to 81,044,676.48, 121,615,431.24 and 74,451,031.68 is: 111,721,024.96
Step by Step Solution
- Step 1: Write the proportion equation
81,044,676.48 : 121,615,431.24 = 74,451,031.68 : x - Step 2: Convert to fraction form
81,044,676.48/121,615,431.24 = 74,451,031.68/x - Step 3: Cross multiply
81,044,676.48x = 121,615,431.24 × 74,451,031.68 - Step 4: Simplify right side
81,044,676.48x = 9,054,394,324,026,102 - Step 5: Solve for x
x = 9,054,394,324,026,102/81,044,676.48 - Step 6: Final answer
x = 111,721,024.96
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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.