Finding the Fourth Proportional to 381,064,583.37, 525,837,510.95 and 213,777,966.09
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Solution
The fourth proportional to 381,064,583.37, 525,837,510.95 and 213,777,966.09 is: 294,995,857.63
Step by Step Solution
- Step 1: Write the proportion equation
381,064,583.37 : 525,837,510.95 = 213,777,966.09 : x - Step 2: Convert to fraction form
381,064,583.37/525,837,510.95 = 213,777,966.09/x - Step 3: Cross multiply
381,064,583.37x = 525,837,510.95 × 213,777,966.09 - Step 4: Simplify right side
381,064,583.37x = 112,412,473,583,650,208 - Step 5: Solve for x
x = 112,412,473,583,650,208/381,064,583.37 - Step 6: Final answer
x = 294,995,857.63
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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.