Finding the Fourth Proportional to 11,871,013.12, 16,380,508.80 and 7,041,184
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Solution
The fourth proportional to 11,871,013.12, 16,380,508.80 and 7,041,184 is: 9,715,950.55
Step by Step Solution
- Step 1: Write the proportion equation
11,871,013.12 : 16,380,508.80 = 7,041,184 : x - Step 2: Convert to fraction form
11,871,013.12/16,380,508.80 = 7,041,184/x - Step 3: Cross multiply
11,871,013.12x = 16,380,508.80 × 7,041,184 - Step 4: Simplify right side
11,871,013.12x = 115,338,176,474,419.20 - Step 5: Solve for x
x = 115,338,176,474,419.20/11,871,013.12 - Step 6: Final answer
x = 9,715,950.55
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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.