Finding the Fourth Proportional to 8,421,106.87, 11,621,113.70 and 4,750,012.01
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Solution
The fourth proportional to 8,421,106.87, 11,621,113.70 and 4,750,012.01 is: 6,555,008.80
Step by Step Solution
- Step 1: Write the proportion equation
8,421,106.87 : 11,621,113.70 = 4,750,012.01 : x - Step 2: Convert to fraction form
8,421,106.87/11,621,113.70 = 4,750,012.01/x - Step 3: Cross multiply
8,421,106.87x = 11,621,113.70 × 4,750,012.01 - Step 4: Simplify right side
8,421,106.87x = 55,200,429,644,575.53 - Step 5: Solve for x
x = 55,200,429,644,575.53/8,421,106.87 - Step 6: Final answer
x = 6,555,008.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.