Finding the Fourth Proportional to 10,226,620.47, 15,339,948.14 and 8,190,232.68
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Solution
The fourth proportional to 10,226,620.47, 15,339,948.14 and 8,190,232.68 is: 12,285,362.99
Step by Step Solution
- Step 1: Write the proportion equation
10,226,620.47 : 15,339,948.14 = 8,190,232.68 : x - Step 2: Convert to fraction form
10,226,620.47/15,339,948.14 = 8,190,232.68/x - Step 3: Cross multiply
10,226,620.47x = 15,339,948.14 × 8,190,232.68 - Step 4: Simplify right side
10,226,620.47x = 125,637,744,643,733.59 - Step 5: Solve for x
x = 125,637,744,643,733.59/10,226,620.47 - Step 6: Final answer
x = 12,285,362.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.