Finding the Fourth Proportional to 28,430,700.26, 42,619,893.52 and 15,457,893.30
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Solution
The fourth proportional to 28,430,700.26, 42,619,893.52 and 15,457,893.30 is: 23,172,618.35
Step by Step Solution
- Step 1: Write the proportion equation
28,430,700.26 : 42,619,893.52 = 15,457,893.30 : x - Step 2: Convert to fraction form
28,430,700.26/42,619,893.52 = 15,457,893.30/x - Step 3: Cross multiply
28,430,700.26x = 42,619,893.52 × 15,457,893.30 - Step 4: Simplify right side
28,430,700.26x = 658,813,766,489,521.50 - Step 5: Solve for x
x = 658,813,766,489,521.50/28,430,700.26 - Step 6: Final answer
x = 23,172,618.35
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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.