Finding the Fourth Proportional to 15,121,992.04, 20,868,382.02 and 8,595,661.48
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Solution
The fourth proportional to 15,121,992.04, 20,868,382.02 and 8,595,661.48 is: 11,862,031.60
Step by Step Solution
- Step 1: Write the proportion equation
15,121,992.04 : 20,868,382.02 = 8,595,661.48 : x - Step 2: Convert to fraction form
15,121,992.04/20,868,382.02 = 8,595,661.48/x - Step 3: Cross multiply
15,121,992.04x = 20,868,382.02 × 8,595,661.48 - Step 4: Simplify right side
15,121,992.04x = 179,377,547,479,238.59 - Step 5: Solve for x
x = 179,377,547,479,238.59/15,121,992.04 - Step 6: Final answer
x = 11,862,031.60
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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.