Finding the Fourth Proportional to 160,243,876.80, 221,136,550.07 and 86,905,018.80
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Solution
The fourth proportional to 160,243,876.80, 221,136,550.07 and 86,905,018.80 is: 119,928,925.99
Step by Step Solution
- Step 1: Write the proportion equation
160,243,876.80 : 221,136,550.07 = 86,905,018.80 : x - Step 2: Convert to fraction form
160,243,876.80/221,136,550.07 = 86,905,018.80/x - Step 3: Cross multiply
160,243,876.80x = 221,136,550.07 × 86,905,018.80 - Step 4: Simplify right side
160,243,876.80x = 19,217,876,040,765,964 - Step 5: Solve for x
x = 19,217,876,040,765,964/160,243,876.80 - Step 6: Final answer
x = 119,928,925.99
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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.