Finding the Fourth Proportional to 13,518,450.62, 18,655,385.20 and 7,323,618.49
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Solution
The fourth proportional to 13,518,450.62, 18,655,385.20 and 7,323,618.49 is: 10,106,551.99
Step by Step Solution
- Step 1: Write the proportion equation
13,518,450.62 : 18,655,385.20 = 7,323,618.49 : x - Step 2: Convert to fraction form
13,518,450.62/18,655,385.20 = 7,323,618.49/x - Step 3: Cross multiply
13,518,450.62x = 18,655,385.20 × 7,323,618.49 - Step 4: Simplify right side
13,518,450.62x = 136,624,924,028,781.39 - Step 5: Solve for x
x = 136,624,924,028,781.39/13,518,450.62 - Step 6: Final answer
x = 10,106,551.99
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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.