Finding the Fourth Proportional to 285,299,513.99, 427,650,615.50 and 119,398,077.09
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Solution
The fourth proportional to 285,299,513.99, 427,650,615.50 and 119,398,077.09 is: 178,972,128.07
Step by Step Solution
- Step 1: Write the proportion equation
285,299,513.99 : 427,650,615.50 = 119,398,077.09 : x - Step 2: Convert to fraction form
285,299,513.99/427,650,615.50 = 119,398,077.09/x - Step 3: Cross multiply
285,299,513.99x = 427,650,615.50 × 119,398,077.09 - Step 4: Simplify right side
285,299,513.99x = 51,060,661,156,457,960 - Step 5: Solve for x
x = 51,060,661,156,457,960/285,299,513.99 - Step 6: Final answer
x = 178,972,128.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.