Finding the Fourth Proportional to 191,739,423.70, 287,609,135.55 and 133,068,337.30
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Solution
The fourth proportional to 191,739,423.70, 287,609,135.55 and 133,068,337.30 is: 199,602,505.95
Step by Step Solution
- Step 1: Write the proportion equation
191,739,423.70 : 287,609,135.55 = 133,068,337.30 : x - Step 2: Convert to fraction form
191,739,423.70/287,609,135.55 = 133,068,337.30/x - Step 3: Cross multiply
191,739,423.70x = 287,609,135.55 × 133,068,337.30 - Step 4: Simplify right side
191,739,423.70x = 38,271,669,459,928,824 - Step 5: Solve for x
x = 38,271,669,459,928,824/191,739,423.70 - Step 6: Final answer
x = 199,602,505.95
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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.