Finding the Fourth Proportional to 67,769,705.82, 93,518,614.80 and 38,401,390.44
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Solution
The fourth proportional to 67,769,705.82, 93,518,614.80 and 38,401,390.44 is: 52,991,890.65
Step by Step Solution
- Step 1: Write the proportion equation
67,769,705.82 : 93,518,614.80 = 38,401,390.44 : x - Step 2: Convert to fraction form
67,769,705.82/93,518,614.80 = 38,401,390.44/x - Step 3: Cross multiply
67,769,705.82x = 93,518,614.80 × 38,401,390.44 - Step 4: Simplify right side
67,769,705.82x = 3,591,244,840,342,762 - Step 5: Solve for x
x = 3,591,244,840,342,762/67,769,705.82 - Step 6: Final answer
x = 52,991,890.65
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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.