Finding the Fourth Proportional to 13,318,209.60, 19,986,645.60 and 8,537,524.80
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Solution
The fourth proportional to 13,318,209.60, 19,986,645.60 and 8,537,524.80 is: 12,812,268.89
Step by Step Solution
- Step 1: Write the proportion equation
13,318,209.60 : 19,986,645.60 = 8,537,524.80 : x - Step 2: Convert to fraction form
13,318,209.60/19,986,645.60 = 8,537,524.80/x - Step 3: Cross multiply
13,318,209.60x = 19,986,645.60 × 8,537,524.80 - Step 4: Simplify right side
13,318,209.60x = 170,636,482,478,810.91 - Step 5: Solve for x
x = 170,636,482,478,810.91/13,318,209.60 - Step 6: Final answer
x = 12,812,268.89
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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.