Finding the Fourth Proportional to 12,164,365.21, 16,786,140.99 and 6,657,728.85
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Solution
The fourth proportional to 12,164,365.21, 16,786,140.99 and 6,657,728.85 is: 9,187,291.99
Step by Step Solution
- Step 1: Write the proportion equation
12,164,365.21 : 16,786,140.99 = 6,657,728.85 : x - Step 2: Convert to fraction form
12,164,365.21/16,786,140.99 = 6,657,728.85/x - Step 3: Cross multiply
12,164,365.21x = 16,786,140.99 × 6,657,728.85 - Step 4: Simplify right side
12,164,365.21x = 111,757,575,032,071.20 - Step 5: Solve for x
x = 111,757,575,032,071.20/12,164,365.21 - Step 6: Final answer
x = 9,187,291.99
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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.