Finding the Fourth Proportional to 12,948,108.21, 17,868,113.33 and 7,067,547.09
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Solution
The fourth proportional to 12,948,108.21, 17,868,113.33 and 7,067,547.09 is: 9,753,064.33
Step by Step Solution
- Step 1: Write the proportion equation
12,948,108.21 : 17,868,113.33 = 7,067,547.09 : x - Step 2: Convert to fraction form
12,948,108.21/17,868,113.33 = 7,067,547.09/x - Step 3: Cross multiply
12,948,108.21x = 17,868,113.33 × 7,067,547.09 - Step 4: Simplify right side
12,948,108.21x = 126,283,732,333,893.97 - Step 5: Solve for x
x = 126,283,732,333,893.97/12,948,108.21 - Step 6: Final answer
x = 9,753,064.33
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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.