Finding the Fourth Proportional to 13,531,648.28, 18,655,609.18 and 10,750,001.12
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Solution
The fourth proportional to 13,531,648.28, 18,655,609.18 and 10,750,001.12 is: 14,820,649.74
Step by Step Solution
- Step 1: Write the proportion equation
13,531,648.28 : 18,655,609.18 = 10,750,001.12 : x - Step 2: Convert to fraction form
13,531,648.28/18,655,609.18 = 10,750,001.12/x - Step 3: Cross multiply
13,531,648.28x = 18,655,609.18 × 10,750,001.12 - Step 4: Simplify right side
13,531,648.28x = 200,547,819,579,282.25 - Step 5: Solve for x
x = 200,547,819,579,282.25/13,531,648.28 - Step 6: Final answer
x = 14,820,649.74
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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.