Finding the Fourth Proportional to 608,982,193.82, 840,299,434.41 and 354,705,398.66
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Solution
The fourth proportional to 608,982,193.82, 840,299,434.41 and 354,705,398.66 is: 489,437,538.41
Step by Step Solution
- Step 1: Write the proportion equation
608,982,193.82 : 840,299,434.41 = 354,705,398.66 : x - Step 2: Convert to fraction form
608,982,193.82/840,299,434.41 = 354,705,398.66/x - Step 3: Cross multiply
608,982,193.82x = 840,299,434.41 × 354,705,398.66 - Step 4: Simplify right side
608,982,193.82x = 298,058,745,877,609,088 - Step 5: Solve for x
x = 298,058,745,877,609,088/608,982,193.82 - Step 6: Final answer
x = 489,437,538.41
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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.