Finding the Fourth Proportional to 18,518,428.29, 27,778,272.21 and 8,798,024.53
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Solution
The fourth proportional to 18,518,428.29, 27,778,272.21 and 8,798,024.53 is: 13,197,335.99
Step by Step Solution
- Step 1: Write the proportion equation
18,518,428.29 : 27,778,272.21 = 8,798,024.53 : x - Step 2: Convert to fraction form
18,518,428.29/27,778,272.21 = 8,798,024.53/x - Step 3: Cross multiply
18,518,428.29x = 27,778,272.21 × 8,798,024.53 - Step 4: Simplify right side
18,518,428.29x = 244,393,920,235,151.62 - Step 5: Solve for x
x = 244,393,920,235,151.62/18,518,428.29 - Step 6: Final answer
x = 13,197,335.99
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1.5x scale
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.