Finding the Fourth Proportional to 215,681,471.70, 323,522,207.55 and 164,663,135.70
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Solution
The fourth proportional to 215,681,471.70, 323,522,207.55 and 164,663,135.70 is: 246,994,703.55
Step by Step Solution
- Step 1: Write the proportion equation
215,681,471.70 : 323,522,207.55 = 164,663,135.70 : x - Step 2: Convert to fraction form
215,681,471.70/323,522,207.55 = 164,663,135.70/x - Step 3: Cross multiply
215,681,471.70x = 323,522,207.55 × 164,663,135.70 - Step 4: Simplify right side
215,681,471.70x = 53,272,181,163,769,216 - Step 5: Solve for x
x = 53,272,181,163,769,216/215,681,471.70 - Step 6: Final answer
x = 246,994,703.55
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1.5x scale
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.