Finding the Fourth Proportional to 7,769,590.40, 10,721,533.20 and 4,331,626.40
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Solution
The fourth proportional to 7,769,590.40, 10,721,533.20 and 4,331,626.40 is: 5,977,364.81
Step by Step Solution
- Step 1: Write the proportion equation
7,769,590.40 : 10,721,533.20 = 4,331,626.40 : x - Step 2: Convert to fraction form
7,769,590.40/10,721,533.20 = 4,331,626.40/x - Step 3: Cross multiply
7,769,590.40x = 10,721,533.20 × 4,331,626.40 - Step 4: Simplify right side
7,769,590.40x = 46,441,676,257,596.48 - Step 5: Solve for x
x = 46,441,676,257,596.48/7,769,590.40 - Step 6: Final answer
x = 5,977,364.81
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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.