Finding the Fourth Proportional to 39,011,741.63, 53,836,202.49 and 21,609,207.86
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Solution
The fourth proportional to 39,011,741.63, 53,836,202.49 and 21,609,207.86 is: 29,820,706.32
Step by Step Solution
- Step 1: Write the proportion equation
39,011,741.63 : 53,836,202.49 = 21,609,207.86 : x - Step 2: Convert to fraction form
39,011,741.63/53,836,202.49 = 21,609,207.86/x - Step 3: Cross multiply
39,011,741.63x = 53,836,202.49 × 21,609,207.86 - Step 4: Simplify right side
39,011,741.63x = 1,163,357,689,999,459.50 - Step 5: Solve for x
x = 1,163,357,689,999,459.50/39,011,741.63 - Step 6: Final answer
x = 29,820,706.32
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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.