Finding the Fourth Proportional to 18,348,018.45, 27,515,029.28 and 5,564,274.45
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Solution
The fourth proportional to 18,348,018.45, 27,515,029.28 and 5,564,274.45 is: 8,344,289.32
Step by Step Solution
- Step 1: Write the proportion equation
18,348,018.45 : 27,515,029.28 = 5,564,274.45 : x - Step 2: Convert to fraction form
18,348,018.45/27,515,029.28 = 5,564,274.45/x - Step 3: Cross multiply
18,348,018.45x = 27,515,029.28 × 5,564,274.45 - Step 4: Simplify right side
18,348,018.45x = 153,101,174,385,884.53 - Step 5: Solve for x
x = 153,101,174,385,884.53/18,348,018.45 - Step 6: Final answer
x = 8,344,289.32
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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.