Finding the Fourth Proportional to 11,837,702.80, 17,756,554.20 and 7,798,751.20
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Solution
The fourth proportional to 11,837,702.80, 17,756,554.20 and 7,798,751.20 is: 11,698,126.80
Step by Step Solution
- Step 1: Write the proportion equation
11,837,702.80 : 17,756,554.20 = 7,798,751.20 : x - Step 2: Convert to fraction form
11,837,702.80/17,756,554.20 = 7,798,751.20/x - Step 3: Cross multiply
11,837,702.80x = 17,756,554.20 × 7,798,751.20 - Step 4: Simplify right side
11,837,702.80x = 138,478,948,375,115.03 - Step 5: Solve for x
x = 138,478,948,375,115.03/11,837,702.80 - Step 6: Final answer
x = 11,698,126.80
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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.