Finding the Fourth Proportional to 173,789,616.96, 239,803,011.36 and 100,436,592.96
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Solution
The fourth proportional to 173,789,616.96, 239,803,011.36 and 100,436,592.96 is: 138,587,090.90
Step by Step Solution
- Step 1: Write the proportion equation
173,789,616.96 : 239,803,011.36 = 100,436,592.96 : x - Step 2: Convert to fraction form
173,789,616.96/239,803,011.36 = 100,436,592.96/x - Step 3: Cross multiply
173,789,616.96x = 239,803,011.36 × 100,436,592.96 - Step 4: Simplify right side
173,789,616.96x = 24,084,997,442,546,576 - Step 5: Solve for x
x = 24,084,997,442,546,576/173,789,616.96 - Step 6: Final answer
x = 138,587,090.90
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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.