Finding the Fourth Proportional to 15,554,750.20, 21,726,261.80 and 15,554,750.20
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Solution
The fourth proportional to 15,554,750.20, 21,726,261.80 and 15,554,750.20 is: 21,726,261.80
Step by Step Solution
- Step 1: Write the proportion equation
15,554,750.20 : 21,726,261.80 = 15,554,750.20 : x - Step 2: Convert to fraction form
15,554,750.20/21,726,261.80 = 15,554,750.20/x - Step 3: Cross multiply
15,554,750.20x = 21,726,261.80 × 15,554,750.20 - Step 4: Simplify right side
15,554,750.20x = 337,946,575,078,802.38 - Step 5: Solve for x
x = 337,946,575,078,802.38/15,554,750.20 - Step 6: Final answer
x = 21,726,261.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.