Finding the Fourth Proportional to 140,865,710.14, 194,365,569.99 and 81,325,974.51
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Solution
The fourth proportional to 140,865,710.14, 194,365,569.99 and 81,325,974.51 is: 112,213,038.75
Step by Step Solution
- Step 1: Write the proportion equation
140,865,710.14 : 194,365,569.99 = 81,325,974.51 : x - Step 2: Convert to fraction form
140,865,710.14/194,365,569.99 = 81,325,974.51/x - Step 3: Cross multiply
140,865,710.14x = 194,365,569.99 × 81,325,974.51 - Step 4: Simplify right side
140,865,710.14x = 15,806,969,390,628,362 - Step 5: Solve for x
x = 15,806,969,390,628,362/140,865,710.14 - Step 6: Final answer
x = 112,213,038.75
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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.