Finding the Fourth Proportional to 198,058,136.23, 297,121,447.63 and 66,901,366.84
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Solution
The fourth proportional to 198,058,136.23, 297,121,447.63 and 66,901,366.84 is: 100,363,617.18
Step by Step Solution
- Step 1: Write the proportion equation
198,058,136.23 : 297,121,447.63 = 66,901,366.84 : x - Step 2: Convert to fraction form
198,058,136.23/297,121,447.63 = 66,901,366.84/x - Step 3: Cross multiply
198,058,136.23x = 297,121,447.63 × 66,901,366.84 - Step 4: Simplify right side
198,058,136.23x = 19,877,830,963,016,420 - Step 5: Solve for x
x = 19,877,830,963,016,420/198,058,136.23 - Step 6: Final answer
x = 100,363,617.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.