Finding the Fourth Proportional to 8,149,331,777.70, 12,223,997,666.55 and 6,516,745,025.70
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Solution
The fourth proportional to 8,149,331,777.70, 12,223,997,666.55 and 6,516,745,025.70 is: 9,775,117,538.55
Step by Step Solution
- Step 1: Write the proportion equation
8,149,331,777.70 : 12,223,997,666.55 = 6,516,745,025.70 : x - Step 2: Convert to fraction form
8,149,331,777.70/12,223,997,666.55 = 6,516,745,025.70/x - Step 3: Cross multiply
8,149,331,777.70x = 12,223,997,666.55 × 6,516,745,025.70 - Step 4: Simplify right side
8,149,331,777.70x = 79,660,675,987,658,113,024 - Step 5: Solve for x
x = 79,660,675,987,658,113,024/8,149,331,777.70 - Step 6: Final answer
x = 9,775,117,538.55
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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.