Finding the Fourth Proportional to 28,545,580.66, 39,392,940.28 and 15,492,839.74
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Solution
The fourth proportional to 28,545,580.66, 39,392,940.28 and 15,492,839.74 is: 21,380,139.99
Step by Step Solution
- Step 1: Write the proportion equation
28,545,580.66 : 39,392,940.28 = 15,492,839.74 : x - Step 2: Convert to fraction form
28,545,580.66/39,392,940.28 = 15,492,839.74/x - Step 3: Cross multiply
28,545,580.66x = 39,392,940.28 × 15,492,839.74 - Step 4: Simplify right side
28,545,580.66x = 610,308,510,645,430.75 - Step 5: Solve for x
x = 610,308,510,645,430.75/28,545,580.66 - Step 6: Final answer
x = 21,380,139.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.