Finding the Fourth Proportional to 19,621,330,235.70, 29,431,995,353.55 and 19,621,330,235.70
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Solution
The fourth proportional to 19,621,330,235.70, 29,431,995,353.55 and 19,621,330,235.70 is: 29,431,995,353.55
Step by Step Solution
- Step 1: Write the proportion equation
19,621,330,235.70 : 29,431,995,353.55 = 19,621,330,235.70 : x - Step 2: Convert to fraction form
19,621,330,235.70/29,431,995,353.55 = 19,621,330,235.70/x - Step 3: Cross multiply
19,621,330,235.70x = 29,431,995,353.55 × 19,621,330,235.70 - Step 4: Simplify right side
19,621,330,235.70x = 577,494,900,327,592,558,592 - Step 5: Solve for x
x = 577,494,900,327,592,558,592/19,621,330,235.70 - Step 6: Final answer
x = 29,431,995,353.55
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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.