Finding the Fourth Proportional to 68,338,494.68, 94,307,061.24 and 38,575,408.91
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Solution
The fourth proportional to 68,338,494.68, 94,307,061.24 and 38,575,408.91 is: 53,234,029.62
Step by Step Solution
- Step 1: Write the proportion equation
68,338,494.68 : 94,307,061.24 = 38,575,408.91 : x - Step 2: Convert to fraction form
68,338,494.68/94,307,061.24 = 38,575,408.91/x - Step 3: Cross multiply
68,338,494.68x = 94,307,061.24 × 38,575,408.91 - Step 4: Simplify right side
68,338,494.68x = 3,637,933,449,961,876 - Step 5: Solve for x
x = 3,637,933,449,961,876/68,338,494.68 - Step 6: Final answer
x = 53,234,029.62
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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.