Finding the Fourth Proportional to 10,372,430.70, 15,553,980.45 and 3,980,558.70
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Solution
The fourth proportional to 10,372,430.70, 15,553,980.45 and 3,980,558.70 is: 5,969,047.56
Step by Step Solution
- Step 1: Write the proportion equation
10,372,430.70 : 15,553,980.45 = 3,980,558.70 : x - Step 2: Convert to fraction form
10,372,430.70/15,553,980.45 = 3,980,558.70/x - Step 3: Cross multiply
10,372,430.70x = 15,553,980.45 × 3,980,558.70 - Step 4: Simplify right side
10,372,430.70x = 61,913,532,199,877.41 - Step 5: Solve for x
x = 61,913,532,199,877.41/10,372,430.70 - Step 6: Final answer
x = 5,969,047.56
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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.