Finding the Fourth Proportional to 13,608,532.20, 18,779,808.84 and 7,413,624.06
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Solution
The fourth proportional to 13,608,532.20, 18,779,808.84 and 7,413,624.06 is: 10,230,819.95
Step by Step Solution
- Step 1: Write the proportion equation
13,608,532.20 : 18,779,808.84 = 7,413,624.06 : x - Step 2: Convert to fraction form
13,608,532.20/18,779,808.84 = 7,413,624.06/x - Step 3: Cross multiply
13,608,532.20x = 18,779,808.84 × 7,413,624.06 - Step 4: Simplify right side
13,608,532.20x = 139,226,442,658,424.69 - Step 5: Solve for x
x = 139,226,442,658,424.69/13,608,532.20 - Step 6: Final answer
x = 10,230,819.95
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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.