Finding the Fourth Proportional to 21,344,220.19, 29,455,017.63 and 11,554,657.12
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Solution
The fourth proportional to 21,344,220.19, 29,455,017.63 and 11,554,657.12 is: 15,945,423.45
Step by Step Solution
- Step 1: Write the proportion equation
21,344,220.19 : 29,455,017.63 = 11,554,657.12 : x - Step 2: Convert to fraction form
21,344,220.19/29,455,017.63 = 11,554,657.12/x - Step 3: Cross multiply
21,344,220.19x = 29,455,017.63 × 11,554,657.12 - Step 4: Simplify right side
21,344,220.19x = 340,342,629,178,205 - Step 5: Solve for x
x = 340,342,629,178,205/21,344,220.19 - Step 6: Final answer
x = 15,945,423.45
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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.