Finding the Fourth Proportional to 138,082,209.48, 190,553,058.36 and 76,202,105.58
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Solution
The fourth proportional to 138,082,209.48, 190,553,058.36 and 76,202,105.58 is: 105,158,690.08
Step by Step Solution
- Step 1: Write the proportion equation
138,082,209.48 : 190,553,058.36 = 76,202,105.58 : x - Step 2: Convert to fraction form
138,082,209.48/190,553,058.36 = 76,202,105.58/x - Step 3: Cross multiply
138,082,209.48x = 190,553,058.36 × 76,202,105.58 - Step 4: Simplify right side
138,082,209.48x = 14,520,544,271,740,622 - Step 5: Solve for x
x = 14,520,544,271,740,622/138,082,209.48 - Step 6: Final answer
x = 105,158,690.08
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.