Finding the Third Proportional to 84,135,890 and 129,243,029
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Solution
The third proportional to 84,135,890 and 129,243,029 is: 198,533,117.62
Step by Step Solution
- Step 1: Write the proportion equation
84,135,890 : 129,243,029 = 129,243,029 : x - Step 2: Convert to fraction form
84,135,890/129,243,029 = 129,243,029/x - Step 3: Cross multiply
84,135,890x = 129,243,029 × 129,243,029 - Step 4: Simplify right side
84,135,890x = 16,703,760,545,094,840 - Step 5: Solve for x
x = 16,703,760,545,094,840/84,135,890 - Step 6: Final answer
x = 198,533,117.62
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Why These Related Problems?
These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.