Finding the Fourth Proportional to 21,344,420.29, 29,455,309.11 and 11,554,864.24
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Solution
The fourth proportional to 21,344,420.29, 29,455,309.11 and 11,554,864.24 is: 15,945,717.58
Step by Step Solution
- Step 1: Write the proportion equation
21,344,420.29 : 29,455,309.11 = 11,554,864.24 : x - Step 2: Convert to fraction form
21,344,420.29/29,455,309.11 = 11,554,864.24/x - Step 3: Cross multiply
21,344,420.29x = 29,455,309.11 × 11,554,864.24 - Step 4: Simplify right side
21,344,420.29x = 340,352,097,913,285.25 - Step 5: Solve for x
x = 340,352,097,913,285.25/21,344,420.29 - Step 6: Final answer
x = 15,945,717.58
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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.