Finding the Fourth Proportional to 21,730,189,672.80, 32,595,284,509.20 and 18,243,405,271.80
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Solution
The fourth proportional to 21,730,189,672.80, 32,595,284,509.20 and 18,243,405,271.80 is: 27,365,107,907.70
Step by Step Solution
- Step 1: Write the proportion equation
21,730,189,672.80 : 32,595,284,509.20 = 18,243,405,271.80 : x - Step 2: Convert to fraction form
21,730,189,672.80/32,595,284,509.20 = 18,243,405,271.80/x - Step 3: Cross multiply
21,730,189,672.80x = 32,595,284,509.20 × 18,243,405,271.80 - Step 4: Simplify right side
21,730,189,672.80x = 594,648,985,250,960,113,664 - Step 5: Solve for x
x = 594,648,985,250,960,113,664/21,730,189,672.80 - Step 6: Final answer
x = 27,365,107,907.70
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1.5x scale
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.