Finding the Fourth Proportional to 13,035,817.20, 19,553,725.80 and 8,248,911.60
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Solution
The fourth proportional to 13,035,817.20, 19,553,725.80 and 8,248,911.60 is: 12,373,367.40
Step by Step Solution
- Step 1: Write the proportion equation
13,035,817.20 : 19,553,725.80 = 8,248,911.60 : x - Step 2: Convert to fraction form
13,035,817.20/19,553,725.80 = 8,248,911.60/x - Step 3: Cross multiply
13,035,817.20x = 19,553,725.80 × 8,248,911.60 - Step 4: Simplify right side
13,035,817.20x = 161,296,955,574,839.28 - Step 5: Solve for x
x = 161,296,955,574,839.28/13,035,817.20 - Step 6: Final answer
x = 12,373,367.40
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1.5x scale
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.