Finding the Fourth Proportional to 18,893,534.30, 28,298,311.05 and 15,534,302.30
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Solution
The fourth proportional to 18,893,534.30, 28,298,311.05 and 15,534,302.30 is: 23,266,928.86
Step by Step Solution
- Step 1: Write the proportion equation
18,893,534.30 : 28,298,311.05 = 15,534,302.30 : x - Step 2: Convert to fraction form
18,893,534.30/28,298,311.05 = 15,534,302.30/x - Step 3: Cross multiply
18,893,534.30x = 28,298,311.05 × 15,534,302.30 - Step 4: Simplify right side
18,893,534.30x = 439,594,518,430,130.44 - Step 5: Solve for x
x = 439,594,518,430,130.44/18,893,534.30 - Step 6: Final answer
x = 23,266,928.86
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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.