Finding the Fourth Proportional to 18,486,073.72, 27,731,633.81 and 7,700,851.79
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Solution
The fourth proportional to 18,486,073.72, 27,731,633.81 and 7,700,851.79 is: 11,552,328.80
Step by Step Solution
- Step 1: Write the proportion equation
18,486,073.72 : 27,731,633.81 = 7,700,851.79 : x - Step 2: Convert to fraction form
18,486,073.72/27,731,633.81 = 7,700,851.79/x - Step 3: Cross multiply
18,486,073.72x = 27,731,633.81 × 7,700,851.79 - Step 4: Simplify right side
18,486,073.72x = 213,557,201,688,200.59 - Step 5: Solve for x
x = 213,557,201,688,200.59/18,486,073.72 - Step 6: Final answer
x = 11,552,328.80
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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.