Finding the Fourth Proportional to 80,869,237.26, 121,180,420.80 and 48,015,109.74
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Solution
The fourth proportional to 80,869,237.26, 121,180,420.80 and 48,015,109.74 is: 71,949,376.55
Step by Step Solution
- Step 1: Write the proportion equation
80,869,237.26 : 121,180,420.80 = 48,015,109.74 : x - Step 2: Convert to fraction form
80,869,237.26/121,180,420.80 = 48,015,109.74/x - Step 3: Cross multiply
80,869,237.26x = 121,180,420.80 × 48,015,109.74 - Step 4: Simplify right side
80,869,237.26x = 5,818,491,203,051,379 - Step 5: Solve for x
x = 5,818,491,203,051,379/80,869,237.26 - Step 6: Final answer
x = 71,949,376.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.