Finding the Fourth Proportional to 7,438,207.68, 11,152,217.94 and 3,787,871.57
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Solution
The fourth proportional to 7,438,207.68, 11,152,217.94 and 3,787,871.57 is: 5,679,213.47
Step by Step Solution
- Step 1: Write the proportion equation
7,438,207.68 : 11,152,217.94 = 3,787,871.57 : x - Step 2: Convert to fraction form
7,438,207.68/11,152,217.94 = 3,787,871.57/x - Step 3: Cross multiply
7,438,207.68x = 11,152,217.94 × 3,787,871.57 - Step 4: Simplify right side
7,438,207.68x = 42,243,169,221,608.88 - Step 5: Solve for x
x = 42,243,169,221,608.88/7,438,207.68 - Step 6: Final answer
x = 5,679,213.47
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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.