Finding the Fourth Proportional to 19,998,639.84, 27,598,037.12 and 11,178,078.68
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Solution
The fourth proportional to 19,998,639.84, 27,598,037.12 and 11,178,078.68 is: 15,425,700.59
Step by Step Solution
- Step 1: Write the proportion equation
19,998,639.84 : 27,598,037.12 = 11,178,078.68 : x - Step 2: Convert to fraction form
19,998,639.84/27,598,037.12 = 11,178,078.68/x - Step 3: Cross multiply
19,998,639.84x = 27,598,037.12 × 11,178,078.68 - Step 4: Simplify right side
19,998,639.84x = 308,493,030,340,920.62 - Step 5: Solve for x
x = 308,493,030,340,920.62/19,998,639.84 - Step 6: Final answer
x = 15,425,700.59
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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.