Finding the Fourth Proportional to 128,664,539.70, 192,996,809.55 and 32,926,427.70
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Solution
The fourth proportional to 128,664,539.70, 192,996,809.55 and 32,926,427.70 is: 49,389,641.55
Step by Step Solution
- Step 1: Write the proportion equation
128,664,539.70 : 192,996,809.55 = 32,926,427.70 : x - Step 2: Convert to fraction form
128,664,539.70/192,996,809.55 = 32,926,427.70/x - Step 3: Cross multiply
128,664,539.70x = 192,996,809.55 × 32,926,427.70 - Step 4: Simplify right side
128,664,539.70x = 6,354,695,495,978,745 - Step 5: Solve for x
x = 6,354,695,495,978,745/128,664,539.70 - Step 6: Final answer
x = 49,389,641.55
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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.