Finding the Fourth Proportional to 15,001,702.05, 20,702,448.21 and 8,126,184.06
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Solution
The fourth proportional to 15,001,702.05, 20,702,448.21 and 8,126,184.06 is: 11,214,187.84
Step by Step Solution
- Step 1: Write the proportion equation
15,001,702.05 : 20,702,448.21 = 8,126,184.06 : x - Step 2: Convert to fraction form
15,001,702.05/20,702,448.21 = 8,126,184.06/x - Step 3: Cross multiply
15,001,702.05x = 20,702,448.21 × 8,126,184.06 - Step 4: Simplify right side
15,001,702.05x = 168,231,904,647,077.53 - Step 5: Solve for x
x = 168,231,904,647,077.53/15,001,702.05 - Step 6: Final answer
x = 11,214,187.84
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1.5x scale
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.