Finding the Fourth Proportional to 81,583,031.08, 122,338,636.05 and 43,235,560.72
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Solution
The fourth proportional to 81,583,031.08, 122,338,636.05 and 43,235,560.72 is: 64,834,309.99
Step by Step Solution
- Step 1: Write the proportion equation
81,583,031.08 : 122,338,636.05 = 43,235,560.72 : x - Step 2: Convert to fraction form
81,583,031.08/122,338,636.05 = 43,235,560.72/x - Step 3: Cross multiply
81,583,031.08x = 122,338,636.05 × 43,235,560.72 - Step 4: Simplify right side
81,583,031.08x = 5,289,379,526,730,063 - Step 5: Solve for x
x = 5,289,379,526,730,063/81,583,031.08 - Step 6: Final answer
x = 64,834,309.99
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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.