Finding the Fourth Proportional to 153,247,689.08, 211,478,859.97 and 83,633,568.19
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Solution
The fourth proportional to 153,247,689.08, 211,478,859.97 and 83,633,568.19 is: 115,412,713.64
Step by Step Solution
- Step 1: Write the proportion equation
153,247,689.08 : 211,478,859.97 = 83,633,568.19 : x - Step 2: Convert to fraction form
153,247,689.08/211,478,859.97 = 83,633,568.19/x - Step 3: Cross multiply
153,247,689.08x = 211,478,859.97 × 83,633,568.19 - Step 4: Simplify right side
153,247,689.08x = 17,686,731,655,777,532 - Step 5: Solve for x
x = 17,686,731,655,777,532/153,247,689.08 - Step 6: Final answer
x = 115,412,713.64
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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.