Finding the Fourth Proportional to 210,450,678.29, 290,415,929.53 and 116,363,206.97
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Solution
The fourth proportional to 210,450,678.29, 290,415,929.53 and 116,363,206.97 is: 160,577,904.48
Step by Step Solution
- Step 1: Write the proportion equation
210,450,678.29 : 290,415,929.53 = 116,363,206.97 : x - Step 2: Convert to fraction form
210,450,678.29/290,415,929.53 = 116,363,206.97/x - Step 3: Cross multiply
210,450,678.29x = 290,415,929.53 × 116,363,206.97 - Step 4: Simplify right side
210,450,678.29x = 33,793,728,915,284,320 - Step 5: Solve for x
x = 33,793,728,915,284,320/210,450,678.29 - Step 6: Final answer
x = 160,577,904.48
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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.