Finding the Fourth Proportional to 69,151,869.40, 103,745,739.12 and 36,777,151.12
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Solution
The fourth proportional to 69,151,869.40, 103,745,739.12 and 36,777,151.12 is: 55,175,265.09
Step by Step Solution
- Step 1: Write the proportion equation
69,151,869.40 : 103,745,739.12 = 36,777,151.12 : x - Step 2: Convert to fraction form
69,151,869.40/103,745,739.12 = 36,777,151.12/x - Step 3: Cross multiply
69,151,869.40x = 103,745,739.12 × 36,777,151.12 - Step 4: Simplify right side
69,151,869.40x = 3,815,472,725,672,335.50 - Step 5: Solve for x
x = 3,815,472,725,672,335.50/69,151,869.40 - Step 6: Final answer
x = 55,175,265.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.