Finding the Fourth Proportional to 317,742,744.84, 438,603,932.61 and 238,586,471.03
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Solution
The fourth proportional to 317,742,744.84, 438,603,932.61 and 238,586,471.03 is: 329,338,643.16
Step by Step Solution
- Step 1: Write the proportion equation
317,742,744.84 : 438,603,932.61 = 238,586,471.03 : x - Step 2: Convert to fraction form
317,742,744.84/438,603,932.61 = 238,586,471.03/x - Step 3: Cross multiply
317,742,744.84x = 438,603,932.61 × 238,586,471.03 - Step 4: Simplify right side
317,742,744.84x = 104,644,964,459,106,816 - Step 5: Solve for x
x = 104,644,964,459,106,816/317,742,744.84 - Step 6: Final answer
x = 329,338,643.16
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.