Finding the Fourth Proportional to 8,678,281.60, 11,977,354.20 and 5,539,900.96
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Solution
The fourth proportional to 8,678,281.60, 11,977,354.20 and 5,539,900.96 is: 7,645,909.53
Step by Step Solution
- Step 1: Write the proportion equation
8,678,281.60 : 11,977,354.20 = 5,539,900.96 : x - Step 2: Convert to fraction form
8,678,281.60/11,977,354.20 = 5,539,900.96/x - Step 3: Cross multiply
8,678,281.60x = 11,977,354.20 × 5,539,900.96 - Step 4: Simplify right side
8,678,281.60x = 66,353,356,030,840.03 - Step 5: Solve for x
x = 66,353,356,030,840.03/8,678,281.60 - Step 6: Final answer
x = 7,645,909.53
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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.