Finding the Fourth Proportional to 46,337,846.40, 69,539,947.20 and 19,430,812.80
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Solution
The fourth proportional to 46,337,846.40, 69,539,947.20 and 19,430,812.80 is: 29,160,131.54
Step by Step Solution
- Step 1: Write the proportion equation
46,337,846.40 : 69,539,947.20 = 19,430,812.80 : x - Step 2: Convert to fraction form
46,337,846.40/69,539,947.20 = 19,430,812.80/x - Step 3: Cross multiply
46,337,846.40x = 69,539,947.20 × 19,430,812.80 - Step 4: Simplify right side
46,337,846.40x = 1,351,217,696,165,084.25 - Step 5: Solve for x
x = 1,351,217,696,165,084.25/46,337,846.40 - Step 6: Final answer
x = 29,160,131.54
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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.