Finding the Fourth Proportional to 324,971,772.78, 487,440,491.20 and 106,593,349.26
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Solution
The fourth proportional to 324,971,772.78, 487,440,491.20 and 106,593,349.26 is: 159,884,392.66
Step by Step Solution
- Step 1: Write the proportion equation
324,971,772.78 : 487,440,491.20 = 106,593,349.26 : x - Step 2: Convert to fraction form
324,971,772.78/487,440,491.20 = 106,593,349.26/x - Step 3: Cross multiply
324,971,772.78x = 487,440,491.20 × 106,593,349.26 - Step 4: Simplify right side
324,971,772.78x = 51,957,914,521,947,560 - Step 5: Solve for x
x = 51,957,914,521,947,560/324,971,772.78 - Step 6: Final answer
x = 159,884,392.66
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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.