Finding the Fourth Proportional to 28,737,105.34, 39,656,643.24 and 15,684,457.84
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Solution
The fourth proportional to 28,737,105.34, 39,656,643.24 and 15,684,457.84 is: 21,644,245.01
Step by Step Solution
- Step 1: Write the proportion equation
28,737,105.34 : 39,656,643.24 = 15,684,457.84 : x - Step 2: Convert to fraction form
28,737,105.34/39,656,643.24 = 15,684,457.84/x - Step 3: Cross multiply
28,737,105.34x = 39,656,643.24 × 15,684,457.84 - Step 4: Simplify right side
28,737,105.34x = 621,992,948,973,701 - Step 5: Solve for x
x = 621,992,948,973,701/28,737,105.34 - Step 6: Final answer
x = 21,644,245.01
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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.