Finding the Fourth Proportional to 8,386,989.18, 12,562,043.25 and 6,931,172.99
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Solution
The fourth proportional to 8,386,989.18, 12,562,043.25 and 6,931,172.99 is: 10,381,519.88
Step by Step Solution
- Step 1: Write the proportion equation
8,386,989.18 : 12,562,043.25 = 6,931,172.99 : x - Step 2: Convert to fraction form
8,386,989.18/12,562,043.25 = 6,931,172.99/x - Step 3: Cross multiply
8,386,989.18x = 12,562,043.25 × 6,931,172.99 - Step 4: Simplify right side
8,386,989.18x = 87,069,694,860,347.34 - Step 5: Solve for x
x = 87,069,694,860,347.34/8,386,989.18 - Step 6: Final answer
x = 10,381,519.88
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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.