Finding the Fourth Proportional to 70,687,634.64, 97,557,818.88 and 39,747,581.88
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Solution
The fourth proportional to 70,687,634.64, 97,557,818.88 and 39,747,581.88 is: 54,856,657.94
Step by Step Solution
- Step 1: Write the proportion equation
70,687,634.64 : 97,557,818.88 = 39,747,581.88 : x - Step 2: Convert to fraction form
70,687,634.64/97,557,818.88 = 39,747,581.88/x - Step 3: Cross multiply
70,687,634.64x = 97,557,818.88 × 39,747,581.88 - Step 4: Simplify right side
70,687,634.64x = 3,877,687,393,967,010 - Step 5: Solve for x
x = 3,877,687,393,967,010/70,687,634.64 - Step 6: Final answer
x = 54,856,657.94
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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.