Finding the Fourth Proportional to 12,905,524, 17,809,623.12 and 7,183,739.68
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Solution
The fourth proportional to 12,905,524, 17,809,623.12 and 7,183,739.68 is: 9,913,560.76
Step by Step Solution
- Step 1: Write the proportion equation
12,905,524 : 17,809,623.12 = 7,183,739.68 : x - Step 2: Convert to fraction form
12,905,524/17,809,623.12 = 7,183,739.68/x - Step 3: Cross multiply
12,905,524x = 17,809,623.12 × 7,183,739.68 - Step 4: Simplify right side
12,905,524x = 127,939,696,292,989.41 - Step 5: Solve for x
x = 127,939,696,292,989.41/12,905,524 - Step 6: Final answer
x = 9,913,560.76
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.