Finding the Fourth Proportional to 53,762,431.80, 80,643,647.70 and 31,087,615.80
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Solution
The fourth proportional to 53,762,431.80, 80,643,647.70 and 31,087,615.80 is: 46,631,423.70
Step by Step Solution
- Step 1: Write the proportion equation
53,762,431.80 : 80,643,647.70 = 31,087,615.80 : x - Step 2: Convert to fraction form
53,762,431.80/80,643,647.70 = 31,087,615.80/x - Step 3: Cross multiply
53,762,431.80x = 80,643,647.70 × 31,087,615.80 - Step 4: Simplify right side
53,762,431.80x = 2,507,018,736,408,154 - Step 5: Solve for x
x = 2,507,018,736,408,154/53,762,431.80 - Step 6: Final answer
x = 46,631,423.70
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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.