Finding the Fourth Proportional to 7,183,485.90, 9,913,072.21 and 3,920,323.98
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Solution
The fourth proportional to 7,183,485.90, 9,913,072.21 and 3,920,323.98 is: 5,409,971.61
Step by Step Solution
- Step 1: Write the proportion equation
7,183,485.90 : 9,913,072.21 = 3,920,323.98 : x - Step 2: Convert to fraction form
7,183,485.90/9,913,072.21 = 3,920,323.98/x - Step 3: Cross multiply
7,183,485.90x = 9,913,072.21 × 3,920,323.98 - Step 4: Simplify right side
7,183,485.90x = 38,862,454,749,031.17 - Step 5: Solve for x
x = 38,862,454,749,031.17/7,183,485.90 - Step 6: Final answer
x = 5,409,971.61
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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.