Finding the Fourth Proportional to 4,014,459.79, 5,539,884.99 and 2,178,878.68
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Solution
The fourth proportional to 4,014,459.79, 5,539,884.99 and 2,178,878.68 is: 3,006,814.85
Step by Step Solution
- Step 1: Write the proportion equation
4,014,459.79 : 5,539,884.99 = 2,178,878.68 : x - Step 2: Convert to fraction form
4,014,459.79/5,539,884.99 = 2,178,878.68/x - Step 3: Cross multiply
4,014,459.79x = 5,539,884.99 × 2,178,878.68 - Step 4: Simplify right side
4,014,459.79x = 12,070,737,280,513.30 - Step 5: Solve for x
x = 12,070,737,280,513.30/4,014,459.79 - Step 6: Final answer
x = 3,006,814.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.