Finding the Fourth Proportional to 438,130,827.48, 604,620,688.56 and 239,904,859.92
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Solution
The fourth proportional to 438,130,827.48, 604,620,688.56 and 239,904,859.92 is: 331,068,786.98
Step by Step Solution
- Step 1: Write the proportion equation
438,130,827.48 : 604,620,688.56 = 239,904,859.92 : x - Step 2: Convert to fraction form
438,130,827.48/604,620,688.56 = 239,904,859.92/x - Step 3: Cross multiply
438,130,827.48x = 604,620,688.56 × 239,904,859.92 - Step 4: Simplify right side
438,130,827.48x = 145,051,441,593,720,736 - Step 5: Solve for x
x = 145,051,441,593,720,736/438,130,827.48 - Step 6: Final answer
x = 331,068,786.98
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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.