Finding the Fourth Proportional to 756,680,905.80, 1,135,021,358.70 and 756,680,905.80
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Solution
The fourth proportional to 756,680,905.80, 1,135,021,358.70 and 756,680,905.80 is: 1,135,021,358.70
Step by Step Solution
- Step 1: Write the proportion equation
756,680,905.80 : 1,135,021,358.70 = 756,680,905.80 : x - Step 2: Convert to fraction form
756,680,905.80/1,135,021,358.70 = 756,680,905.80/x - Step 3: Cross multiply
756,680,905.80x = 1,135,021,358.70 × 756,680,905.80 - Step 4: Simplify right side
756,680,905.80x = 858,848,989,803,462,656 - Step 5: Solve for x
x = 858,848,989,803,462,656/756,680,905.80 - Step 6: Final answer
x = 1,135,021,358.70
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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.