Finding the Fourth Proportional to 27,205,639.76, 40,813,840.20 and 7,775,040.08
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Solution
The fourth proportional to 27,205,639.76, 40,813,840.20 and 7,775,040.08 is: 11,664,097.82
Step by Step Solution
- Step 1: Write the proportion equation
27,205,639.76 : 40,813,840.20 = 7,775,040.08 : x - Step 2: Convert to fraction form
27,205,639.76/40,813,840.20 = 7,775,040.08/x - Step 3: Cross multiply
27,205,639.76x = 40,813,840.20 × 7,775,040.08 - Step 4: Simplify right side
27,205,639.76x = 317,329,243,373,715.25 - Step 5: Solve for x
x = 317,329,243,373,715.25/27,205,639.76 - Step 6: Final answer
x = 11,664,097.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.