Finding the Fourth Proportional to 13,530,462.30, 18,674,750.59 and 8,026,891.99
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Solution
The fourth proportional to 13,530,462.30, 18,674,750.59 and 8,026,891.99 is: 11,078,720.19
Step by Step Solution
- Step 1: Write the proportion equation
13,530,462.30 : 18,674,750.59 = 8,026,891.99 : x - Step 2: Convert to fraction form
13,530,462.30/18,674,750.59 = 8,026,891.99/x - Step 3: Cross multiply
13,530,462.30x = 18,674,750.59 × 8,026,891.99 - Step 4: Simplify right side
13,530,462.30x = 149,900,205,926,118.78 - Step 5: Solve for x
x = 149,900,205,926,118.78/13,530,462.30 - Step 6: Final answer
x = 11,078,720.19
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1.5x scale
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.