Finding the Fourth Proportional to 18,468,051.30, 27,702,076.95 and 12,303,335.70
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Solution
The fourth proportional to 18,468,051.30, 27,702,076.95 and 12,303,335.70 is: 18,455,003.55
Step by Step Solution
- Step 1: Write the proportion equation
18,468,051.30 : 27,702,076.95 = 12,303,335.70 : x - Step 2: Convert to fraction form
18,468,051.30/27,702,076.95 = 12,303,335.70/x - Step 3: Cross multiply
18,468,051.30x = 27,702,076.95 × 12,303,335.70 - Step 4: Simplify right side
18,468,051.30x = 340,827,952,303,082.06 - Step 5: Solve for x
x = 340,827,952,303,082.06/18,468,051.30 - Step 6: Final answer
x = 18,455,003.55
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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.