Finding the Fourth Proportional to 756,810,021.70, 1,135,215,032.55 and 756,810,021.70
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Solution
The fourth proportional to 756,810,021.70, 1,135,215,032.55 and 756,810,021.70 is: 1,135,215,032.55
Step by Step Solution
- Step 1: Write the proportion equation
756,810,021.70 : 1,135,215,032.55 = 756,810,021.70 : x - Step 2: Convert to fraction form
756,810,021.70/1,135,215,032.55 = 756,810,021.70/x - Step 3: Cross multiply
756,810,021.70x = 1,135,215,032.55 × 756,810,021.70 - Step 4: Simplify right side
756,810,021.70x = 859,142,113,418,331,776 - Step 5: Solve for x
x = 859,142,113,418,331,776/756,810,021.70 - Step 6: Final answer
x = 1,135,215,032.55
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Double scale
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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.