Finding the Fourth Proportional to 216,948,131.73, 299,390,581.08 and 117,830,817.99
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Solution
The fourth proportional to 216,948,131.73, 299,390,581.08 and 117,830,817.99 is: 162,607,701.60
Step by Step Solution
- Step 1: Write the proportion equation
216,948,131.73 : 299,390,581.08 = 117,830,817.99 : x - Step 2: Convert to fraction form
216,948,131.73/299,390,581.08 = 117,830,817.99/x - Step 3: Cross multiply
216,948,131.73x = 299,390,581.08 × 117,830,817.99 - Step 4: Simplify right side
216,948,131.73x = 35,277,437,067,157,816 - Step 5: Solve for x
x = 35,277,437,067,157,816/216,948,131.73 - Step 6: Final answer
x = 162,607,701.60
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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.