Finding the Fourth Proportional to 209,767,798.08, 289,473,220.80 and 115,681,896.54
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Solution
The fourth proportional to 209,767,798.08, 289,473,220.80 and 115,681,896.54 is: 159,637,520.56
Step by Step Solution
- Step 1: Write the proportion equation
209,767,798.08 : 289,473,220.80 = 115,681,896.54 : x - Step 2: Convert to fraction form
209,767,798.08/289,473,220.80 = 115,681,896.54/x - Step 3: Cross multiply
209,767,798.08x = 289,473,220.80 × 115,681,896.54 - Step 4: Simplify right side
209,767,798.08x = 33,486,811,179,686,180 - Step 5: Solve for x
x = 33,486,811,179,686,180/209,767,798.08 - Step 6: Final answer
x = 159,637,520.56
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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.