Finding the Fourth Proportional to 15,121,991.04, 20,868,380.64 and 8,595,660.48
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Solution
The fourth proportional to 15,121,991.04, 20,868,380.64 and 8,595,660.48 is: 11,862,030.22
Step by Step Solution
- Step 1: Write the proportion equation
15,121,991.04 : 20,868,380.64 = 8,595,660.48 : x - Step 2: Convert to fraction form
15,121,991.04/20,868,380.64 = 8,595,660.48/x - Step 3: Cross multiply
15,121,991.04x = 20,868,380.64 × 8,595,660.48 - Step 4: Simplify right side
15,121,991.04x = 179,377,514,748,845.12 - Step 5: Solve for x
x = 179,377,514,748,845.12/15,121,991.04 - Step 6: Final answer
x = 11,862,030.22
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.