Finding the Fourth Proportional to 18,676,136.84, 28,012,101.18 and 5,030,281.99
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Solution
The fourth proportional to 18,676,136.84, 28,012,101.18 and 5,030,281.99 is: 7,544,856.27
Step by Step Solution
- Step 1: Write the proportion equation
18,676,136.84 : 28,012,101.18 = 5,030,281.99 : x - Step 2: Convert to fraction form
18,676,136.84/28,012,101.18 = 5,030,281.99/x - Step 3: Cross multiply
18,676,136.84x = 28,012,101.18 × 5,030,281.99 - Step 4: Simplify right side
18,676,136.84x = 140,908,768,083,963.31 - Step 5: Solve for x
x = 140,908,768,083,963.31/18,676,136.84 - Step 6: Final answer
x = 7,544,856.27
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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.