Finding the Fourth Proportional to 90,044,782.34, 135,080,625.80 and 28,635,944.41
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Solution
The fourth proportional to 90,044,782.34, 135,080,625.80 and 28,635,944.41 is: 42,958,194.70
Step by Step Solution
- Step 1: Write the proportion equation
90,044,782.34 : 135,080,625.80 = 28,635,944.41 : x - Step 2: Convert to fraction form
90,044,782.34/135,080,625.80 = 28,635,944.41/x - Step 3: Cross multiply
90,044,782.34x = 135,080,625.80 × 28,635,944.41 - Step 4: Simplify right side
90,044,782.34x = 3,868,161,291,330,376 - Step 5: Solve for x
x = 3,868,161,291,330,376/90,044,782.34 - Step 6: Final answer
x = 42,958,194.70
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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.