Finding the Fourth Proportional to 7,913,806.20, 10,921,053.42 and 4,475,974.20
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Solution
The fourth proportional to 7,913,806.20, 10,921,053.42 and 4,475,974.20 is: 6,176,844.88
Step by Step Solution
- Step 1: Write the proportion equation
7,913,806.20 : 10,921,053.42 = 4,475,974.20 : x - Step 2: Convert to fraction form
7,913,806.20/10,921,053.42 = 4,475,974.20/x - Step 3: Cross multiply
7,913,806.20x = 10,921,053.42 × 4,475,974.20 - Step 4: Simplify right side
7,913,806.20x = 48,882,353,344,741.77 - Step 5: Solve for x
x = 48,882,353,344,741.77/7,913,806.20 - Step 6: Final answer
x = 6,176,844.88
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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.