Finding the Fourth Proportional to 7,038,351.41, 9,712,655.93 and 3,940,584.98
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Solution
The fourth proportional to 7,038,351.41, 9,712,655.93 and 3,940,584.98 is: 5,437,856.65
Step by Step Solution
- Step 1: Write the proportion equation
7,038,351.41 : 9,712,655.93 = 3,940,584.98 : x - Step 2: Convert to fraction form
7,038,351.41/9,712,655.93 = 3,940,584.98/x - Step 3: Cross multiply
7,038,351.41x = 9,712,655.93 × 3,940,584.98 - Step 4: Simplify right side
7,038,351.41x = 38,273,546,005,399.73 - Step 5: Solve for x
x = 38,273,546,005,399.73/7,038,351.41 - Step 6: Final answer
x = 5,437,856.65
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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.