Finding the Fourth Proportional to 438,130,809.98, 604,620,664.41 and 239,904,842.42
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Solution
The fourth proportional to 438,130,809.98, 604,620,664.41 and 239,904,842.42 is: 331,068,762.83
Step by Step Solution
- Step 1: Write the proportion equation
438,130,809.98 : 604,620,664.41 = 239,904,842.42 : x - Step 2: Convert to fraction form
438,130,809.98/604,620,664.41 = 239,904,842.42/x - Step 3: Cross multiply
438,130,809.98x = 604,620,664.41 × 239,904,842.42 - Step 4: Simplify right side
438,130,809.98x = 145,051,425,219,156,736 - Step 5: Solve for x
x = 145,051,425,219,156,736/438,130,809.98 - Step 6: Final answer
x = 331,068,762.83
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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.