Finding the Fourth Proportional to 20,494,934.65, 28,283,771.50 and 11,203,129.58
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Solution
The fourth proportional to 20,494,934.65, 28,283,771.50 and 11,203,129.58 is: 15,460,735.17
Step by Step Solution
- Step 1: Write the proportion equation
20,494,934.65 : 28,283,771.50 = 11,203,129.58 : x - Step 2: Convert to fraction form
20,494,934.65/28,283,771.50 = 11,203,129.58/x - Step 3: Cross multiply
20,494,934.65x = 28,283,771.50 × 11,203,129.58 - Step 4: Simplify right side
20,494,934.65x = 316,866,756,956,184.25 - Step 5: Solve for x
x = 316,866,756,956,184.25/20,494,934.65 - Step 6: Final answer
x = 15,460,735.17
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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.