Finding the Fourth Proportional to 61,408,494.74, 84,708,197.34 and 39,678,462.74
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Solution
The fourth proportional to 61,408,494.74, 84,708,197.34 and 39,678,462.74 is: 54,733,324.21
Step by Step Solution
- Step 1: Write the proportion equation
61,408,494.74 : 84,708,197.34 = 39,678,462.74 : x - Step 2: Convert to fraction form
61,408,494.74/84,708,197.34 = 39,678,462.74/x - Step 3: Cross multiply
61,408,494.74x = 84,708,197.34 × 39,678,462.74 - Step 4: Simplify right side
61,408,494.74x = 3,361,091,051,927,757.50 - Step 5: Solve for x
x = 3,361,091,051,927,757.50/61,408,494.74 - Step 6: Final answer
x = 54,733,324.21
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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.