Finding the Fourth Proportional to 131,106,699.26, 180,927,217.64 and 72,369,349.05
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Solution
The fourth proportional to 131,106,699.26, 180,927,217.64 and 72,369,349.05 is: 99,869,686.60
Step by Step Solution
- Step 1: Write the proportion equation
131,106,699.26 : 180,927,217.64 = 72,369,349.05 : x - Step 2: Convert to fraction form
131,106,699.26/180,927,217.64 = 72,369,349.05/x - Step 3: Cross multiply
131,106,699.26x = 180,927,217.64 × 72,369,349.05 - Step 4: Simplify right side
131,106,699.26x = 13,093,584,965,672,630 - Step 5: Solve for x
x = 13,093,584,965,672,630/131,106,699.26 - Step 6: Final answer
x = 99,869,686.60
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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.