Finding the Fourth Proportional to 12,384,869.28, 18,549,020.16 and 5,912,497.44
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Solution
The fourth proportional to 12,384,869.28, 18,549,020.16 and 5,912,497.44 is: 8,855,243.58
Step by Step Solution
- Step 1: Write the proportion equation
12,384,869.28 : 18,549,020.16 = 5,912,497.44 : x - Step 2: Convert to fraction form
12,384,869.28/18,549,020.16 = 5,912,497.44/x - Step 3: Cross multiply
12,384,869.28x = 18,549,020.16 × 5,912,497.44 - Step 4: Simplify right side
12,384,869.28x = 109,671,034,210,508.41 - Step 5: Solve for x
x = 109,671,034,210,508.41/12,384,869.28 - Step 6: Final answer
x = 8,855,243.58
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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.