Finding the Fourth Proportional to 12,885,918.63, 19,327,875.48 and 7,491,125.40
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Solution
The fourth proportional to 12,885,918.63, 19,327,875.48 and 7,491,125.40 is: 11,236,105.33
Step by Step Solution
- Step 1: Write the proportion equation
12,885,918.63 : 19,327,875.48 = 7,491,125.40 : x - Step 2: Convert to fraction form
12,885,918.63/19,327,875.48 = 7,491,125.40/x - Step 3: Cross multiply
12,885,918.63x = 19,327,875.48 × 7,491,125.40 - Step 4: Simplify right side
12,885,918.63x = 144,787,538,936,265.19 - Step 5: Solve for x
x = 144,787,538,936,265.19/12,885,918.63 - Step 6: Final answer
x = 11,236,105.33
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.