Finding the Fourth Proportional to 14,042,419.20, 19,377,532.80 and 8,241,436.80
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Solution
The fourth proportional to 14,042,419.20, 19,377,532.80 and 8,241,436.80 is: 11,372,592.55
Step by Step Solution
- Step 1: Write the proportion equation
14,042,419.20 : 19,377,532.80 = 8,241,436.80 : x - Step 2: Convert to fraction form
14,042,419.20/19,377,532.80 = 8,241,436.80/x - Step 3: Cross multiply
14,042,419.20x = 19,377,532.80 × 8,241,436.80 - Step 4: Simplify right side
14,042,419.20x = 159,698,711,911,127.03 - Step 5: Solve for x
x = 159,698,711,911,127.03/14,042,419.20 - Step 6: Final answer
x = 11,372,592.55
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1.5x scale
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.