Finding the Fourth Proportional to 7,106,386.40, 10,656,469.20 and 2,845,138.40
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Solution
The fourth proportional to 7,106,386.40, 10,656,469.20 and 2,845,138.40 is: 4,266,462.31
Step by Step Solution
- Step 1: Write the proportion equation
7,106,386.40 : 10,656,469.20 = 2,845,138.40 : x - Step 2: Convert to fraction form
7,106,386.40/10,656,469.20 = 2,845,138.40/x - Step 3: Cross multiply
7,106,386.40x = 10,656,469.20 × 2,845,138.40 - Step 4: Simplify right side
7,106,386.40x = 30,319,129,729,337.28 - Step 5: Solve for x
x = 30,319,129,729,337.28/7,106,386.40 - Step 6: Final answer
x = 4,266,462.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.