Finding the Fourth Proportional to 18,893,722.80, 28,298,593.80 and 15,534,490.80
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Solution
The fourth proportional to 18,893,722.80, 28,298,593.80 and 15,534,490.80 is: 23,267,211.53
Step by Step Solution
- Step 1: Write the proportion equation
18,893,722.80 : 28,298,593.80 = 15,534,490.80 : x - Step 2: Convert to fraction form
18,893,722.80/28,298,593.80 = 15,534,490.80/x - Step 3: Cross multiply
18,893,722.80x = 28,298,593.80 × 15,534,490.80 - Step 4: Simplify right side
18,893,722.80x = 439,604,245,039,037.06 - Step 5: Solve for x
x = 439,604,245,039,037.06/18,893,722.80 - Step 6: Final answer
x = 23,267,211.53
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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.