Finding the Fourth Proportional to 18,485,444.51, 27,730,688.91 and 7,700,223.09
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Solution
The fourth proportional to 18,485,444.51, 27,730,688.91 and 7,700,223.09 is: 11,551,385.25
Step by Step Solution
- Step 1: Write the proportion equation
18,485,444.51 : 27,730,688.91 = 7,700,223.09 : x - Step 2: Convert to fraction form
18,485,444.51/27,730,688.91 = 7,700,223.09/x - Step 3: Cross multiply
18,485,444.51x = 27,730,688.91 × 7,700,223.09 - Step 4: Simplify right side
18,485,444.51x = 213,532,491,046,388.94 - Step 5: Solve for x
x = 213,532,491,046,388.94/18,485,444.51 - Step 6: Final answer
x = 11,551,385.25
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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.