Finding the Fourth Proportional to 220,749,761.35, 304,641,572.84 and 126,681,117.67
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Solution
The fourth proportional to 220,749,761.35, 304,641,572.84 and 126,681,117.67 is: 174,823,903.32
Step by Step Solution
- Step 1: Write the proportion equation
220,749,761.35 : 304,641,572.84 = 126,681,117.67 : x - Step 2: Convert to fraction form
220,749,761.35/304,641,572.84 = 126,681,117.67/x - Step 3: Cross multiply
220,749,761.35x = 304,641,572.84 × 126,681,117.67 - Step 4: Simplify right side
220,749,761.35x = 38,592,334,936,117,912 - Step 5: Solve for x
x = 38,592,334,936,117,912/220,749,761.35 - Step 6: Final answer
x = 174,823,903.32
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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.