Finding the Fourth Proportional to 28,545,573.40, 39,392,930.27 and 15,492,832.49
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Solution
The fourth proportional to 28,545,573.40, 39,392,930.27 and 15,492,832.49 is: 21,380,129.99
Step by Step Solution
- Step 1: Write the proportion equation
28,545,573.40 : 39,392,930.27 = 15,492,832.49 : x - Step 2: Convert to fraction form
28,545,573.40/39,392,930.27 = 15,492,832.49/x - Step 3: Cross multiply
28,545,573.40x = 39,392,930.27 × 15,492,832.49 - Step 4: Simplify right side
28,545,573.40x = 610,308,069,963,360.50 - Step 5: Solve for x
x = 610,308,069,963,360.50/28,545,573.40 - Step 6: Final answer
x = 21,380,129.99
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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.