Finding the Fourth Proportional to 101,440,220.43, 139,975,694.37 and 56,788,637.57
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Solution
The fourth proportional to 101,440,220.43, 139,975,694.37 and 56,788,637.57 is: 78,361,708.42
Step by Step Solution
- Step 1: Write the proportion equation
101,440,220.43 : 139,975,694.37 = 56,788,637.57 : x - Step 2: Convert to fraction form
101,440,220.43/139,975,694.37 = 56,788,637.57/x - Step 3: Cross multiply
101,440,220.43x = 139,975,694.37 × 56,788,637.57 - Step 4: Simplify right side
101,440,220.43x = 7,949,028,975,203,198 - Step 5: Solve for x
x = 7,949,028,975,203,198/101,440,220.43 - Step 6: Final answer
x = 78,361,708.42
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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.