Finding the Fourth Proportional to 5,430,172.95, 7,487,497.80 and 3,467,470.29
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Solution
The fourth proportional to 5,430,172.95, 7,487,497.80 and 3,467,470.29 is: 4,781,187.71
Step by Step Solution
- Step 1: Write the proportion equation
5,430,172.95 : 7,487,497.80 = 3,467,470.29 : x - Step 2: Convert to fraction form
5,430,172.95/7,487,497.80 = 3,467,470.29/x - Step 3: Cross multiply
5,430,172.95x = 7,487,497.80 × 3,467,470.29 - Step 4: Simplify right side
5,430,172.95x = 25,962,676,167,940.36 - Step 5: Solve for x
x = 25,962,676,167,940.36/5,430,172.95 - Step 6: Final answer
x = 4,781,187.71
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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.