Finding the Fourth Proportional to 13,313,478.40, 19,970,787.43 and 5,228,203.49
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Solution
The fourth proportional to 13,313,478.40, 19,970,787.43 and 5,228,203.49 is: 7,842,529.01
Step by Step Solution
- Step 1: Write the proportion equation
13,313,478.40 : 19,970,787.43 = 5,228,203.49 : x - Step 2: Convert to fraction form
13,313,478.40/19,970,787.43 = 5,228,203.49/x - Step 3: Cross multiply
13,313,478.40x = 19,970,787.43 × 5,228,203.49 - Step 4: Simplify right side
13,313,478.40x = 104,411,340,521,145.89 - Step 5: Solve for x
x = 104,411,340,521,145.89/13,313,478.40 - Step 6: Final answer
x = 7,842,529.01
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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.