Finding the Fourth Proportional to 18,840,026.90, 28,260,040.35 and 6,871,207.70
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Solution
The fourth proportional to 18,840,026.90, 28,260,040.35 and 6,871,207.70 is: 10,306,811.55
Step by Step Solution
- Step 1: Write the proportion equation
18,840,026.90 : 28,260,040.35 = 6,871,207.70 : x - Step 2: Convert to fraction form
18,840,026.90/28,260,040.35 = 6,871,207.70/x - Step 3: Cross multiply
18,840,026.90x = 28,260,040.35 × 6,871,207.70 - Step 4: Simplify right side
18,840,026.90x = 194,180,606,855,230.72 - Step 5: Solve for x
x = 194,180,606,855,230.72/18,840,026.90 - Step 6: Final answer
x = 10,306,811.55
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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.