Finding the Fourth Proportional to 115,146,243.05, 172,467,422.18 and 100,029,699.05
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Solution
The fourth proportional to 115,146,243.05, 172,467,422.18 and 100,029,699.05 is: 149,825,681.49
Step by Step Solution
- Step 1: Write the proportion equation
115,146,243.05 : 172,467,422.18 = 100,029,699.05 : x - Step 2: Convert to fraction form
115,146,243.05/172,467,422.18 = 100,029,699.05/x - Step 3: Cross multiply
115,146,243.05x = 172,467,422.18 × 100,029,699.05 - Step 4: Simplify right side
115,146,243.05x = 17,251,864,336,094,548 - Step 5: Solve for x
x = 17,251,864,336,094,548/115,146,243.05 - Step 6: Final answer
x = 149,825,681.49
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1.5x scale
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.