Finding the Fourth Proportional to 12,602,207.60, 18,890,869.80 and 6,207,225.20
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Solution
The fourth proportional to 12,602,207.60, 18,890,869.80 and 6,207,225.20 is: 9,304,709.68
Step by Step Solution
- Step 1: Write the proportion equation
12,602,207.60 : 18,890,869.80 = 6,207,225.20 : x - Step 2: Convert to fraction form
12,602,207.60/18,890,869.80 = 6,207,225.20/x - Step 3: Cross multiply
12,602,207.60x = 18,890,869.80 × 6,207,225.20 - Step 4: Simplify right side
12,602,207.60x = 117,259,883,072,478.97 - Step 5: Solve for x
x = 117,259,883,072,478.97/12,602,207.60 - Step 6: Final answer
x = 9,304,709.68
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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.