Finding the Fourth Proportional to 10,382,421.20, 15,573,631.80 and 6,130,893.20
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Solution
The fourth proportional to 10,382,421.20, 15,573,631.80 and 6,130,893.20 is: 9,196,339.80
Step by Step Solution
- Step 1: Write the proportion equation
10,382,421.20 : 15,573,631.80 = 6,130,893.20 : x - Step 2: Convert to fraction form
10,382,421.20/15,573,631.80 = 6,130,893.20/x - Step 3: Cross multiply
10,382,421.20x = 15,573,631.80 × 6,130,893.20 - Step 4: Simplify right side
10,382,421.20x = 95,480,273,301,923.77 - Step 5: Solve for x
x = 95,480,273,301,923.77/10,382,421.20 - Step 6: Final answer
x = 9,196,339.80
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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.