Finding the Fourth Proportional to 13,303,874.20, 19,955,811.29 and 3,206,495.20
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Solution
The fourth proportional to 13,303,874.20, 19,955,811.29 and 3,206,495.20 is: 4,809,742.80
Step by Step Solution
- Step 1: Write the proportion equation
13,303,874.20 : 19,955,811.29 = 3,206,495.20 : x - Step 2: Convert to fraction form
13,303,874.20/19,955,811.29 = 3,206,495.20/x - Step 3: Cross multiply
13,303,874.20x = 19,955,811.29 × 3,206,495.20 - Step 4: Simplify right side
13,303,874.20x = 63,988,213,113,490.81 - Step 5: Solve for x
x = 63,988,213,113,490.81/13,303,874.20 - Step 6: Final answer
x = 4,809,742.80
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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.