Finding the Fourth Proportional to 149,896,657.38, 206,841,461.94 and 82,904,970.09
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Solution
The fourth proportional to 149,896,657.38, 206,841,461.94 and 82,904,970.09 is: 114,400,050.78
Step by Step Solution
- Step 1: Write the proportion equation
149,896,657.38 : 206,841,461.94 = 82,904,970.09 : x - Step 2: Convert to fraction form
149,896,657.38/206,841,461.94 = 82,904,970.09/x - Step 3: Cross multiply
149,896,657.38x = 206,841,461.94 × 82,904,970.09 - Step 4: Simplify right side
149,896,657.38x = 17,148,185,215,507,574 - Step 5: Solve for x
x = 17,148,185,215,507,574/149,896,657.38 - Step 6: Final answer
x = 114,400,050.78
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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.