Finding the Fourth Proportional to 285,716,339.40, 394,372,460.76 and 186,612,237.36
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Solution
The fourth proportional to 285,716,339.40, 394,372,460.76 and 186,612,237.36 is: 257,579,693.94
Step by Step Solution
- Step 1: Write the proportion equation
285,716,339.40 : 394,372,460.76 = 186,612,237.36 : x - Step 2: Convert to fraction form
285,716,339.40/394,372,460.76 = 186,612,237.36/x - Step 3: Cross multiply
285,716,339.40x = 394,372,460.76 × 186,612,237.36 - Step 4: Simplify right side
285,716,339.40x = 73,594,727,255,592,416 - Step 5: Solve for x
x = 73,594,727,255,592,416/285,716,339.40 - Step 6: Final answer
x = 257,579,693.94
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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.