Finding the Fourth Proportional to 157,211,467.67, 216,942,972.17 and 86,646,864.03
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Solution
The fourth proportional to 157,211,467.67, 216,942,972.17 and 86,646,864.03 is: 119,567,792.93
Step by Step Solution
- Step 1: Write the proportion equation
157,211,467.67 : 216,942,972.17 = 86,646,864.03 : x - Step 2: Convert to fraction form
157,211,467.67/216,942,972.17 = 86,646,864.03/x - Step 3: Cross multiply
157,211,467.67x = 216,942,972.17 × 86,646,864.03 - Step 4: Simplify right side
157,211,467.67x = 18,797,428,211,444,828 - Step 5: Solve for x
x = 18,797,428,211,444,828/157,211,467.67 - Step 6: Final answer
x = 119,567,792.93
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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.