Finding the Fourth Proportional to 19,541,621.40, 29,312,432.10 and 13,495,003.80
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Solution
The fourth proportional to 19,541,621.40, 29,312,432.10 and 13,495,003.80 is: 20,242,505.70
Step by Step Solution
- Step 1: Write the proportion equation
19,541,621.40 : 29,312,432.10 = 13,495,003.80 : x - Step 2: Convert to fraction form
19,541,621.40/29,312,432.10 = 13,495,003.80/x - Step 3: Cross multiply
19,541,621.40x = 29,312,432.10 × 13,495,003.80 - Step 4: Simplify right side
19,541,621.40x = 395,571,382,576,742 - Step 5: Solve for x
x = 395,571,382,576,742/19,541,621.40 - Step 6: Final answer
x = 20,242,505.70
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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.