Finding the Fourth Proportional to 7,920,804,861.70, 11,881,207,292.55 and 7,920,804,861.70
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Solution
The fourth proportional to 7,920,804,861.70, 11,881,207,292.55 and 7,920,804,861.70 is: 11,881,207,292.55
Step by Step Solution
- Step 1: Write the proportion equation
7,920,804,861.70 : 11,881,207,292.55 = 7,920,804,861.70 : x - Step 2: Convert to fraction form
7,920,804,861.70/11,881,207,292.55 = 7,920,804,861.70/x - Step 3: Cross multiply
7,920,804,861.70x = 11,881,207,292.55 × 7,920,804,861.70 - Step 4: Simplify right side
7,920,804,861.70x = 94,108,724,485,695,520,768 - Step 5: Solve for x
x = 94,108,724,485,695,520,768/7,920,804,861.70 - Step 6: Final answer
x = 11,881,207,292.55
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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.