Finding the Fourth Proportional to 319,520,115.35, 440,904,153.84 and 185,531,840.31
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Solution
The fourth proportional to 319,520,115.35, 440,904,153.84 and 185,531,840.31 is: 256,014,426.43
Step by Step Solution
- Step 1: Write the proportion equation
319,520,115.35 : 440,904,153.84 = 185,531,840.31 : x - Step 2: Convert to fraction form
319,520,115.35/440,904,153.84 = 185,531,840.31/x - Step 3: Cross multiply
319,520,115.35x = 440,904,153.84 × 185,531,840.31 - Step 4: Simplify right side
319,520,115.35x = 81,801,759,063,549,408 - Step 5: Solve for x
x = 81,801,759,063,549,408/319,520,115.35 - Step 6: Final answer
x = 256,014,426.43
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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.