Finding the Fourth Proportional to 11,283,085.12, 15,566,812.32 and 7,211,053.12
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Solution
The fourth proportional to 11,283,085.12, 15,566,812.32 and 7,211,053.12 is: 9,948,795.86
Step by Step Solution
- Step 1: Write the proportion equation
11,283,085.12 : 15,566,812.32 = 7,211,053.12 : x - Step 2: Convert to fraction form
11,283,085.12/15,566,812.32 = 7,211,053.12/x - Step 3: Cross multiply
11,283,085.12x = 15,566,812.32 × 7,211,053.12 - Step 4: Simplify right side
11,283,085.12x = 112,253,110,548,590.44 - Step 5: Solve for x
x = 112,253,110,548,590.44/11,283,085.12 - Step 6: Final answer
x = 9,948,795.86
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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.