Finding the Fourth Proportional to 38,685,356.60, 53,386,235.16 and 22,165,150.12
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Solution
The fourth proportional to 38,685,356.60, 53,386,235.16 and 22,165,150.12 is: 30,588,161.02
Step by Step Solution
- Step 1: Write the proportion equation
38,685,356.60 : 53,386,235.16 = 22,165,150.12 : x - Step 2: Convert to fraction form
38,685,356.60/53,386,235.16 = 22,165,150.12/x - Step 3: Cross multiply
38,685,356.60x = 53,386,235.16 × 22,165,150.12 - Step 4: Simplify right side
38,685,356.60x = 1,183,313,916,663,022.25 - Step 5: Solve for x
x = 1,183,313,916,663,022.25/38,685,356.60 - Step 6: Final answer
x = 30,588,161.02
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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.