Finding the Fourth Proportional to 138,736,491.20, 207,974,386.14 and 46,555,581.69
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Solution
The fourth proportional to 138,736,491.20, 207,974,386.14 and 46,555,581.69 is: 69,789,630.96
Step by Step Solution
- Step 1: Write the proportion equation
138,736,491.20 : 207,974,386.14 = 46,555,581.69 : x - Step 2: Convert to fraction form
138,736,491.20/207,974,386.14 = 46,555,581.69/x - Step 3: Cross multiply
138,736,491.20x = 207,974,386.14 × 46,555,581.69 - Step 4: Simplify right side
138,736,491.20x = 9,682,368,522,095,724 - Step 5: Solve for x
x = 9,682,368,522,095,724/138,736,491.20 - Step 6: Final answer
x = 69,789,630.96
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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.