Finding the Fourth Proportional to 160,399,358.78, 221,345,187.99 and 87,058,926.14
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Solution
The fourth proportional to 160,399,358.78, 221,345,187.99 and 87,058,926.14 is: 120,138,101.05
Step by Step Solution
- Step 1: Write the proportion equation
160,399,358.78 : 221,345,187.99 = 87,058,926.14 : x - Step 2: Convert to fraction form
160,399,358.78/221,345,187.99 = 87,058,926.14/x - Step 3: Cross multiply
160,399,358.78x = 221,345,187.99 × 87,058,926.14 - Step 4: Simplify right side
160,399,358.78x = 19,270,074,372,665,828 - Step 5: Solve for x
x = 19,270,074,372,665,828/160,399,358.78 - Step 6: Final answer
x = 120,138,101.05
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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.