Finding the Fourth Proportional to 9,252,775.26, 12,768,828.12 and 5,178,394.26
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Solution
The fourth proportional to 9,252,775.26, 12,768,828.12 and 5,178,394.26 is: 7,146,183.11
Step by Step Solution
- Step 1: Write the proportion equation
9,252,775.26 : 12,768,828.12 = 5,178,394.26 : x - Step 2: Convert to fraction form
9,252,775.26/12,768,828.12 = 5,178,394.26/x - Step 3: Cross multiply
9,252,775.26x = 12,768,828.12 × 5,178,394.26 - Step 4: Simplify right side
9,252,775.26x = 66,122,026,243,534.59 - Step 5: Solve for x
x = 66,122,026,243,534.59/9,252,775.26 - Step 6: Final answer
x = 7,146,183.11
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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.