Finding the Fourth Proportional to 10,306,201.80, 15,427,809.90 and 10,306,201.80
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Solution
The fourth proportional to 10,306,201.80, 15,427,809.90 and 10,306,201.80 is: 15,427,809.90
Step by Step Solution
- Step 1: Write the proportion equation
10,306,201.80 : 15,427,809.90 = 10,306,201.80 : x - Step 2: Convert to fraction form
10,306,201.80/15,427,809.90 = 10,306,201.80/x - Step 3: Cross multiply
10,306,201.80x = 15,427,809.90 × 10,306,201.80 - Step 4: Simplify right side
10,306,201.80x = 159,002,122,161,437.84 - Step 5: Solve for x
x = 159,002,122,161,437.84/10,306,201.80 - Step 6: Final answer
x = 15,427,809.90
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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.