Finding the Fourth Proportional to 7,207,116.17, 9,945,820.84 and 3,943,931.06
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Solution
The fourth proportional to 7,207,116.17, 9,945,820.84 and 3,943,931.06 is: 5,442,625.15
Step by Step Solution
- Step 1: Write the proportion equation
7,207,116.17 : 9,945,820.84 = 3,943,931.06 : x - Step 2: Convert to fraction form
7,207,116.17/9,945,820.84 = 3,943,931.06/x - Step 3: Cross multiply
7,207,116.17x = 9,945,820.84 × 3,943,931.06 - Step 4: Simplify right side
7,207,116.17x = 39,225,631,758,850.69 - Step 5: Solve for x
x = 39,225,631,758,850.69/7,207,116.17 - Step 6: Final answer
x = 5,442,625.15
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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.