Finding the Fourth Proportional to 19,076,532.33, 26,331,542.10 and 15,163,231.98
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Solution
The fourth proportional to 19,076,532.33, 26,331,542.10 and 15,163,231.98 is: 20,929,971.67
Step by Step Solution
- Step 1: Write the proportion equation
19,076,532.33 : 26,331,542.10 = 15,163,231.98 : x - Step 2: Convert to fraction form
19,076,532.33/26,331,542.10 = 15,163,231.98/x - Step 3: Cross multiply
19,076,532.33x = 26,331,542.10 × 15,163,231.98 - Step 4: Simplify right side
19,076,532.33x = 399,271,281,253,436.38 - Step 5: Solve for x
x = 399,271,281,253,436.38/19,076,532.33 - Step 6: Final answer
x = 20,929,971.67
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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.