Finding the Fourth Proportional to 13,390,125.12, 20,068,377.12 and 7,241,861.70
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Solution
The fourth proportional to 13,390,125.12, 20,068,377.12 and 7,241,861.70 is: 10,853,700.79
Step by Step Solution
- Step 1: Write the proportion equation
13,390,125.12 : 20,068,377.12 = 7,241,861.70 : x - Step 2: Convert to fraction form
13,390,125.12/20,068,377.12 = 7,241,861.70/x - Step 3: Cross multiply
13,390,125.12x = 20,068,377.12 × 7,241,861.70 - Step 4: Simplify right side
13,390,125.12x = 145,332,411,646,484.31 - Step 5: Solve for x
x = 145,332,411,646,484.31/13,390,125.12 - Step 6: Final answer
x = 10,853,700.79
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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.