Finding the Fourth Proportional to 42,039,120.68, 63,053,257.26 and 13,288,162.58
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Solution
The fourth proportional to 42,039,120.68, 63,053,257.26 and 13,288,162.58 is: 19,930,529.47
Step by Step Solution
- Step 1: Write the proportion equation
42,039,120.68 : 63,053,257.26 = 13,288,162.58 : x - Step 2: Convert to fraction form
42,039,120.68/63,053,257.26 = 13,288,162.58/x - Step 3: Cross multiply
42,039,120.68x = 63,053,257.26 × 13,288,162.58 - Step 4: Simplify right side
42,039,120.68x = 837,861,933,669,445.25 - Step 5: Solve for x
x = 837,861,933,669,445.25/42,039,120.68 - Step 6: Final answer
x = 19,930,529.47
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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.