Finding the Fourth Proportional to 15,340,392.08, 21,170,190.26 and 8,371,518.68
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Solution
The fourth proportional to 15,340,392.08, 21,170,190.26 and 8,371,518.68 is: 11,552,940.90
Step by Step Solution
- Step 1: Write the proportion equation
15,340,392.08 : 21,170,190.26 = 8,371,518.68 : x - Step 2: Convert to fraction form
15,340,392.08/21,170,190.26 = 8,371,518.68/x - Step 3: Cross multiply
15,340,392.08x = 21,170,190.26 × 8,371,518.68 - Step 4: Simplify right side
15,340,392.08x = 177,226,643,073,035.50 - Step 5: Solve for x
x = 177,226,643,073,035.50/15,340,392.08 - Step 6: Final answer
x = 11,552,940.90
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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.