Finding the Fourth Proportional to 438,142,161.20, 604,633,984.44 and 239,900,056.88
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Solution
The fourth proportional to 438,142,161.20, 604,633,984.44 and 239,900,056.88 is: 331,060,874.99
Step by Step Solution
- Step 1: Write the proportion equation
438,142,161.20 : 604,633,984.44 = 239,900,056.88 : x - Step 2: Convert to fraction form
438,142,161.20/604,633,984.44 = 239,900,056.88/x - Step 3: Cross multiply
438,142,161.20x = 604,633,984.44 × 239,900,056.88 - Step 4: Simplify right side
438,142,161.20x = 145,051,727,258,737,056 - Step 5: Solve for x
x = 145,051,727,258,737,056/438,142,161.20 - Step 6: Final answer
x = 331,060,874.99
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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.