Finding the Fourth Proportional to 76,937,446,851.70, 115,406,170,277.55 and 76,937,446,851.70
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Solution
The fourth proportional to 76,937,446,851.70, 115,406,170,277.55 and 76,937,446,851.70 is: 115,406,170,277.55
Step by Step Solution
- Step 1: Write the proportion equation
76,937,446,851.70 : 115,406,170,277.55 = 76,937,446,851.70 : x - Step 2: Convert to fraction form
76,937,446,851.70/115,406,170,277.55 = 76,937,446,851.70/x - Step 3: Cross multiply
76,937,446,851.70x = 115,406,170,277.55 × 76,937,446,851.70 - Step 4: Simplify right side
76,937,446,851.70x = 8,879,056,092,087,242,981,376 - Step 5: Solve for x
x = 8,879,056,092,087,242,981,376/76,937,446,851.70 - Step 6: Final answer
x = 115,406,170,277.55
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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.