Finding the Fourth Proportional to 54,405,021.60, 81,607,532.40 and 18,019,027.80
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Solution
The fourth proportional to 54,405,021.60, 81,607,532.40 and 18,019,027.80 is: 27,028,541.70
Step by Step Solution
- Step 1: Write the proportion equation
54,405,021.60 : 81,607,532.40 = 18,019,027.80 : x - Step 2: Convert to fraction form
54,405,021.60/81,607,532.40 = 18,019,027.80/x - Step 3: Cross multiply
54,405,021.60x = 81,607,532.40 × 18,019,027.80 - Step 4: Simplify right side
54,405,021.60x = 1,470,488,395,005,001 - Step 5: Solve for x
x = 1,470,488,395,005,001/54,405,021.60 - Step 6: Final answer
x = 27,028,541.70
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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.