Finding the Fourth Proportional to 18,946,993.68, 28,408,270.62 and 7,433,624.52
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Solution
The fourth proportional to 18,946,993.68, 28,408,270.62 and 7,433,624.52 is: 11,145,642.45
Step by Step Solution
- Step 1: Write the proportion equation
18,946,993.68 : 28,408,270.62 = 7,433,624.52 : x - Step 2: Convert to fraction form
18,946,993.68/28,408,270.62 = 7,433,624.52/x - Step 3: Cross multiply
18,946,993.68x = 28,408,270.62 × 7,433,624.52 - Step 4: Simplify right side
18,946,993.68x = 211,176,417,051,627.59 - Step 5: Solve for x
x = 211,176,417,051,627.59/18,946,993.68 - Step 6: Final answer
x = 11,145,642.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.