Finding the Fourth Proportional to 7,789,913.56, 10,748,238.36 and 4,524,788.14
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Solution
The fourth proportional to 7,789,913.56, 10,748,238.36 and 4,524,788.14 is: 6,243,137.50
Step by Step Solution
- Step 1: Write the proportion equation
7,789,913.56 : 10,748,238.36 = 4,524,788.14 : x - Step 2: Convert to fraction form
7,789,913.56/10,748,238.36 = 4,524,788.14/x - Step 3: Cross multiply
7,789,913.56x = 10,748,238.36 × 4,524,788.14 - Step 4: Simplify right side
7,789,913.56x = 48,633,501,457,221.05 - Step 5: Solve for x
x = 48,633,501,457,221.05/7,789,913.56 - Step 6: Final answer
x = 6,243,137.50
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Double scale
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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.