Finding the Fourth Proportional to 28,737,104.34, 39,656,641.86 and 15,684,456.84
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Solution
The fourth proportional to 28,737,104.34, 39,656,641.86 and 15,684,456.84 is: 21,644,243.63
Step by Step Solution
- Step 1: Write the proportion equation
28,737,104.34 : 39,656,641.86 = 15,684,456.84 : x - Step 2: Convert to fraction form
28,737,104.34/39,656,641.86 = 15,684,456.84/x - Step 3: Cross multiply
28,737,104.34x = 39,656,641.86 × 15,684,456.84 - Step 4: Simplify right side
28,737,104.34x = 621,992,887,672,507.25 - Step 5: Solve for x
x = 621,992,887,672,507.25/28,737,104.34 - Step 6: Final answer
x = 21,644,243.63
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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.