Finding the Fourth Proportional to 32,408,419.60, 48,604,853.40 and 18,731,990.80
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Solution
The fourth proportional to 32,408,419.60, 48,604,853.40 and 18,731,990.80 is: 28,093,491.69
Step by Step Solution
- Step 1: Write the proportion equation
32,408,419.60 : 48,604,853.40 = 18,731,990.80 : x - Step 2: Convert to fraction form
32,408,419.60/48,604,853.40 = 18,731,990.80/x - Step 3: Cross multiply
32,408,419.60x = 48,604,853.40 × 18,731,990.80 - Step 4: Simplify right side
32,408,419.60x = 910,465,666,724,148.75 - Step 5: Solve for x
x = 910,465,666,724,148.75/32,408,419.60 - Step 6: Final answer
x = 28,093,491.69
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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.