Finding the Fourth Proportional to 10,366,292.72, 14,305,466.85 and 5,720,074.09
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Solution
The fourth proportional to 10,366,292.72, 14,305,466.85 and 5,720,074.09 is: 7,893,692.81
Step by Step Solution
- Step 1: Write the proportion equation
10,366,292.72 : 14,305,466.85 = 5,720,074.09 : x - Step 2: Convert to fraction form
10,366,292.72/14,305,466.85 = 5,720,074.09/x - Step 3: Cross multiply
10,366,292.72x = 14,305,466.85 × 5,720,074.09 - Step 4: Simplify right side
10,366,292.72x = 81,828,330,274,038.91 - Step 5: Solve for x
x = 81,828,330,274,038.91/10,366,292.72 - Step 6: Final answer
x = 7,893,692.81
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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.