Finding the Fourth Proportional to 29,037,105.18, 40,079,667 and 18,980,065.09
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Solution
The fourth proportional to 29,037,105.18, 40,079,667 and 18,980,065.09 is: 26,198,020.90
Step by Step Solution
- Step 1: Write the proportion equation
29,037,105.18 : 40,079,667 = 18,980,065.09 : x - Step 2: Convert to fraction form
29,037,105.18/40,079,667 = 18,980,065.09/x - Step 3: Cross multiply
29,037,105.18x = 40,079,667 × 18,980,065.09 - Step 4: Simplify right side
29,037,105.18x = 760,714,688,445,525 - Step 5: Solve for x
x = 760,714,688,445,525/29,037,105.18 - Step 6: Final answer
x = 26,198,020.90
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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.