Finding the Fourth Proportional to 19,939,378.40, 29,908,630.20 and 5,562,040.40
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Solution
The fourth proportional to 19,939,378.40, 29,908,630.20 and 5,562,040.40 is: 8,342,938.59
Step by Step Solution
- Step 1: Write the proportion equation
19,939,378.40 : 29,908,630.20 = 5,562,040.40 : x - Step 2: Convert to fraction form
19,939,378.40/29,908,630.20 = 5,562,040.40/x - Step 3: Cross multiply
19,939,378.40x = 29,908,630.20 × 5,562,040.40 - Step 4: Simplify right side
19,939,378.40x = 166,353,009,481,060.09 - Step 5: Solve for x
x = 166,353,009,481,060.09/19,939,378.40 - Step 6: Final answer
x = 8,342,938.59
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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.