Finding the Fourth Proportional to 11,221,642.19, 15,485,556.51 and 6,326,821.51
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Solution
The fourth proportional to 11,221,642.19, 15,485,556.51 and 6,326,821.51 is: 8,730,839.06
Step by Step Solution
- Step 1: Write the proportion equation
11,221,642.19 : 15,485,556.51 = 6,326,821.51 : x - Step 2: Convert to fraction form
11,221,642.19/15,485,556.51 = 6,326,821.51/x - Step 3: Cross multiply
11,221,642.19x = 15,485,556.51 × 6,326,821.51 - Step 4: Simplify right side
11,221,642.19x = 97,974,351,983,074.64 - Step 5: Solve for x
x = 97,974,351,983,074.64/11,221,642.19 - Step 6: Final answer
x = 8,730,839.06
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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.